How Clear Expectations, Usable SOPs, and Calm Accountability Build Better Businesses

A leadership and operations guide for laundromat owners

Executive Summary

The owner who checks every bathroom, every lint screen, every refund, every closing photo, and every machine complaint is not necessarily obsessed with control. More often, that owner has learned—sometimes painfully—that an unwatched detail can become a customer complaint, a safety hazard, a cash discrepancy, or an expensive repair.

The instinct to inspect is rational. The mistake is making the owner the only inspection system the company has.

A laundromat becomes scalable when standards no longer live exclusively inside the owner’s head. Employees need to know what success looks like, what procedures protect the customer and the business, which decisions they may make without permission, how results will be reviewed, and what happens when performance falls short. Done well, that structure does not create bureaucracy. It creates freedom.

THE OPERATING EQUATION Clear outcomes + simple SOPs + training + visible measures + consistent coaching = accountability without micromanagement.

 

What this guide covers

• How to define expectations in language employees can act on and managers can evaluate.
• How to build SOPs that are short, visual, accessible, trainable, and regularly improved.
• How to distinguish healthy inspection from controlling micromanagement.
• How to use scorecards, audits, one-on-ones, and coaching without creating a culture of fear.
• Which laundromat SOPs are essential, including safety, cash, cleaning, equipment, refunds, and emergencies.
• How to implement 30-, 60-, and 90-day expectations for new employees and managers.
• Templates owners can adapt immediately.

This article is management guidance, not legal advice. Employment, wage-and-hour, surveillance, privacy, safety, and recordkeeping requirements vary by jurisdiction. Owners should consult qualified legal, HR, insurance, and safety professionals for policies that create legal obligations.

1. The Micromanagement Trap

The owner becomes the operating system

Every laundromat starts with a certain amount of heroic ownership. The founder opens the store, answers the phone, resets machines, refunds customers, cleans the restroom, tracks the collections, calls the technician, and notices details no one else sees. That intensity is often necessary at the beginning. It is also impossible to scale.

The trap appears when the business grows but the operating model does not. More employees are added, yet standards remain informal. Managers receive titles, but not clear decision rights. Checklists exist, but no one verifies them. The owner delegates tasks without transferring the definition of success. When results become inconsistent, the owner responds by checking more often, asking for more photos, requiring more approvals, and inserting himself into increasingly small decisions.

This feels like management. It is actually a warning: the business has not converted judgment into a system.

Why competent owners become controlling

Micromanagement is often described as a personality flaw. Sometimes it is. But in owner-operated companies it is frequently a learned response to repeated failures: a closing shift leaves a door unsecured; lint accumulation creates a fire risk; cash does not reconcile; an employee promises a refund the company cannot support; a leak is ignored; a customer complaint sits unanswered; a preventive-maintenance item is marked complete without being performed.

Once the owner learns that a small miss can create a large consequence, trust becomes expensive. The solution is not blind trust. The solution is verifiable trust—a structure in which expectations are clear, work is observable, exceptions are surfaced early, and people are given room to perform.

Culture is damaged by unpredictability, not standards

Employees rarely resent high standards that are clear, achievable, consistently applied, and supported with training and tools. They resent arbitrary standards, moving targets, selective enforcement, surprise criticism, and managers who take over work without explaining why.

A strong culture is not one in which nobody is corrected. It is one in which correction is predictable, proportional, and connected to a known standard. People know where they stand. Good employees are protected from carrying weak employees. Managers are expected to coach rather than hover. Owners receive reliable information without having to interrogate everyone.

2. Expectations Before Accountability

Employees cannot execute adjectives

Owners often communicate with adjectives: keep the store clean, provide great service, be proactive, watch the machines, use common sense, take ownership. These phrases describe intentions, not behaviors. Two reasonable people can interpret them very differently.

A useful expectation answers five questions: What outcome is required? What observable standard defines success? When or how often must it occur? What evidence confirms completion? What should the employee do when the normal process fails?

Translate values into visible behavior

Consider the phrase ‘keep the store clean.’ A trainable version might say: at the top of every hour, inspect the entrance, floors, folding tables, washer doors and gaskets, dryer fronts, trash, restroom, carts, and visible spills. Correct any issue that can be handled safely within ten minutes. Photograph and report any damage, leak, biohazard, unsafe condition, or repair need immediately. Initial the hourly inspection log after the inspection—not before.

The second version is not more controlling. It is more respectful. It eliminates guessing and gives the employee a fair standard.

Use an expectation architecture

For every role, define expectations in four layers:

1. Outcomes: what the role is accountable for producing.
   2. Standards: the quality, timing, accuracy, and customer-experience requirements.
   3. Guardrails: safety, legal, ethical, cash, and approval boundaries.
   4. Measures: the small set of indicators used to review performance.

For a laundromat attendant, outcomes may include a clean and safe store, functioning customer flow, accurate refunds, prompt issue reporting, and professional service. For a route technician, outcomes may include safe completed repairs, correct parts documentation, clean work areas, customer communication, and low repeat-call rates. The measures should confirm those outcomes—not become a substitute for them.

Make the implicit explicit

Gallup’s engagement framework begins with a basic employee need: knowing what is expected at work. Gallup reports that only about one in two employees globally strongly agree that they know what is expected of them, and it links clearer alignment between job descriptions and actual work with stronger engagement. The practical lesson is simple: clarity is not administrative housekeeping. It is a performance condition.[1]

Owners should review role expectations whenever duties change, equipment changes, a new service is introduced, or repeated errors reveal that a standard was never understood.

3. SOPs Create Freedom

An SOP is a promise about how the business operates

A standard operating procedure is not merely a list of instructions. It is the business’s current best answer to a recurring question: How do we perform this work safely, consistently, and efficiently?

The phrase current best answer matters. SOPs should be stable enough to create consistency and flexible enough to improve when employees discover a better method, technology changes, or an incident exposes a weakness.

Standardize the routine; escalate the unusual

The purpose of an SOP is not to eliminate judgment. It is to preserve judgment for situations that deserve it. Routine refunds, hourly inspections, lint removal, opening procedures, chemical handling, and outage reporting should not require a fresh management conference every time.

A strong procedure tells the employee what to do under normal conditions and when to stop, protect the area, and escalate. For example: an attendant may reset a customer-facing payment terminal using an approved restart process, but may not open an electrical cabinet, bypass a safety switch, or improvise a mechanical repair.

Good SOPs reduce supervision

When a procedure is clear, trained, accessible, and verified, the manager can ask about the result instead of narrating every step. The employee gains confidence and decision speed. The customer receives a more predictable experience. The owner stops being the answer key for every routine decision.

This is why SOPs are freedom documents. They protect employees from ambiguity, protect managers from constant interruption, and protect owners from becoming the single point of failure.

What usable SOPs look like

The best operational SOPs are usually shorter than owners expect. A procedure used during a busy shift should not read like a policy manual. Use a one-page checklist, photos, short video, decision tree, QR code, or job aid where appropriate. Put background, legal language, and detailed technical references in a companion policy or manual.

Each SOP should identify purpose, scope, responsible role, required tools or PPE, sequential steps, quality standard, escalation trigger, required documentation, owner, and revision date.

4. Managing Without Micromanaging

Manage the outcome, not every motion

Micromanagement focuses on how an employee moves through work, even when the employee can produce the agreed result safely and reliably in another acceptable way. Management defines the outcome, teaches required controls, checks performance at reasonable intervals, and intervenes when evidence shows a gap.

A micromanager says, ‘Why did you start with the folding tables instead of the washer fronts?’ A manager says, ‘The hourly audit shows the restroom was missed twice. Walk me through your route and let’s fix the process.’

Autonomy requires boundaries

Autonomy is not the absence of rules. It is authority inside defined boundaries. Employees should know which decisions they own, which decisions require notice, and which decisions require approval.

An attendant may issue refunds up to a stated amount when the reason fits policy; pause use of a machine with a visible safety or performance concern; call emergency services; and offer an approved recovery option to an upset customer. The same attendant may need manager approval for refunds above the limit, free commercial work, vendor commitments, public statements, or access to locked technical areas.

Replace constant checking with a cadence

The opposite of micromanagement is not neglect. It is scheduled visibility. A practical cadence may include a shift checklist, exception alerts, a brief weekly manager review, a monthly operational audit, and a quarterly SOP review.

When the rhythm is known, employees do not feel ambushed and owners do not feel blind. The review focuses on trends, exceptions, and commitments rather than a running stream of interruptions.

Ask questions that build ownership

Instead of immediately providing answers, use questions that require observation and judgment: What standard applies? What did you see? What have you already tried? What risk are you protecting against? What is your recommended next step? What support do you need?

This is not a trick to withhold help. It is how a manager develops an employee who can eventually solve the problem without the manager.

5. Inspect What You Expect—Without Creating Fear

Inspection is a control, not a verdict

A checklist is not proof that work was performed. A photograph is not proof that the entire store was inspected. A dashboard is not proof that the underlying data are accurate. Good management uses multiple light controls: employee self-checks, manager spot-checks, customer feedback, system data, and periodic audits.

The goal is not to catch people. It is to discover where the process is weak before customers, employees, equipment, or cash are harmed.

Use leading indicators

Lagging indicators tell you what already happened: complaints, injuries, repeat repairs, cash shortages, poor reviews, or lost customers. Leading indicators track behaviors that reduce the likelihood of those outcomes: completed safety walks, response time to leaks, verified lint cleaning, preventive-maintenance completion, training completion, and corrective actions closed on time.

OSHA recommends a proactive management approach that includes goals, performance monitoring, outcome evaluation, worker participation, education, training, and continual improvement.[2][3] Although OSHA’s framework is focused on safety and health, its operating logic is useful throughout a laundromat: define the process, involve the people who perform it, train them, observe the work, fix hazards and defects, and improve the system.

Audit the system as well as the employee

When work fails, owners often jump directly to character: careless, lazy, unmotivated. Sometimes that conclusion is justified. But first ask whether the standard was clear, training occurred, tools were available, workload was realistic, supervision was consistent, and the procedure matched the actual environment.

Accountability should distinguish a capability problem, a clarity problem, a resource problem, a process problem, and a will problem. Different causes require different responses.

Share the results

Employees should see the same scorecard managers use. Show trends, define what good looks like, recognize improvement, and explain why a measure matters. Hidden metrics feel like surveillance. Shared metrics feel like a scoreboard.

6. Accountability Without Fear

Predictability builds trust

Employees should be able to predict how management will respond to success, mistakes, recurring poor performance, safety concerns, and misconduct. That predictability reduces politics and anxiety.

A normal performance gap should usually follow a progression: clarify the standard, understand the cause, retrain or remove obstacles, agree on a measurable correction, follow up, document material conversations, and escalate if the gap continues. Serious safety, dishonesty, harassment, violence, theft, or other misconduct may require a different and more immediate process under company policy and applicable law.

Coach close to the event

Do not save every correction for an annual review. Address small gaps while details are fresh and correction is easy. Keep the conversation proportionate: state what was observed, connect it to the standard and impact, ask for the employee’s view, agree on the next action, and establish follow-up.

A useful script is: ‘Here is what I observed. Here is the standard. Here is why it matters. What happened? What will you do differently on the next shift? What support do you need from me?’

Recognition is part of accountability

A culture that documents only failure teaches employees that visibility is dangerous. Managers should also notice reliable execution, good judgment, early reporting, clean handoffs, customer recovery, and process improvements. Recognition does not require a speech or bonus every time. Specific, timely acknowledgment tells people which behaviors the company wants repeated.

Hold managers accountable for the environment

Managers own more than employee correction. They own clarity, staffing, training, tools, workload, response time, and consistent enforcement. A manager who repeatedly says, ‘My people won’t do it,’ may be describing a hiring problem—but may also be revealing a management problem.

7. The Essential Laundromat SOP Library

Customer-facing operations

Every store should document opening and closing, hourly floor inspections, restroom cleaning, spills and biohazards, customer complaints, refunds, lost property, unattended children, disruptive behavior, accessibility concerns, service animals, emergency communications, and incident documentation. Procedures should state both the normal response and when an employee must escalate.

Equipment and facility controls

Document machine outage tagging, leak response, abnormal noise or vibration, electrical or gas concerns, dryer lint removal, make-up air and vent observations, water-heating failures, payment-system resets, preventive-maintenance checks, vendor access, lockout boundaries, and rules prohibiting unauthorized repairs or bypasses.

The SOP must be explicit about what front-line employees may not do. In laundry environments, improvisation around moving equipment, electricity, gas, heat, chemicals, pressure, and safety devices can create severe risk.

Cash and payment controls

Document cash drawer setup, refund authority, safe access, collections, dual control where appropriate, reconciliation, deposits, keys, card-system exceptions, chargebacks, voids, coupons, promotional credits, and discrepancy reporting. Separate incompatible duties when practical, and review exceptions rather than drowning managers in every normal transaction.

Wash-dry-fold and commercial work

Define intake, weighing, pricing, stain disclaimers, special instructions, chemical selection, machine assignment, load separation, drying temperatures, folding, packaging, labeling, storage, final quality checks, customer communication, rewash authority, claims, and chain of custody. The procedure should protect quality while allowing trained employees to move work without waiting for approval at every step.

People and safety

Document attendance, schedule changes, dress and identification, respectful conduct, harassment reporting, injury reporting, emergency response, chemical labels and Safety Data Sheets, personal protective equipment, lifting, sharps, blood or bodily fluids, severe weather, robbery, fire, evacuation, and lone-worker procedures. OSHA emphasizes that training should be understandable to workers, cover specific roles and hazards, allow questions and feedback, and reinforce reporting without fear of retaliation.[4]

8. Building SOPs People Actually Use

Start with the work, not the conference room

The people who perform the work see friction that owners and executives miss. Observe the task, interview reliable employees, collect common exceptions, and identify the points where errors or hazards occur. Worker participation improves both accuracy and adoption. OSHA similarly emphasizes management leadership, worker participation, hazard identification, and training as core elements of an effective program.[3]

Write for the moment of use

An employee standing beside a leaking washer needs a fast decision guide, not a seven-page essay. Use direct verbs, numbered steps, photographs, labels that match the equipment, and a prominent STOP/ESCALATE section. Make the latest version available at the worksite or by QR code. Archive old versions so employees do not unknowingly follow outdated instructions.

Test before publishing

Give the draft to a trained employee who did not write it. Ask that employee to perform or simulate the procedure without verbal coaching. Watch where the instructions are ambiguous, missing, or out of sequence. Revise the document and repeat. An SOP has not been validated merely because a manager approves the wording.

Control revisions

Every SOP needs an owner, effective date, revision date, and review cycle. Update procedures after incidents, near misses, equipment changes, software changes, new legal requirements, repeated customer complaints, or credible employee suggestions. Communicate changes and retrain when the change affects safety, quality, cash, or customer commitments.

Avoid the binder graveyard

A giant handbook no one opens is not an operating system. Build a layered library: concise job aids at the point of work; detailed SOPs for training and reference; policies for broader rules; and technical manuals for qualified personnel. Searchability and access matter as much as authorship.

9. Scorecards That Encourage Judgment

Measure a few outcomes that matter

A store manager scorecard might include verified cleanliness audit, safety issues closed, machine availability, customer response time, cash reconciliation exceptions, preventive-maintenance completion, repeat service incidents, labor to plan, and employee-training completion. Keep the number small enough that priorities remain visible.

Do not reward the metric while damaging the mission

Any metric can be gamed. A refund-rate target may discourage fair customer recovery. A fast ticket-close target may encourage superficial repairs. A labor target may produce understaffed shifts. A machine-availability target may encourage unsafe resets or bypasses. Pair measures and preserve guardrails.

For example, review machine availability alongside repeat failures and safety compliance; labor efficiency alongside cleanliness and customer feedback; refund totals alongside complaint resolution and policy adherence.

Use thresholds and exceptions

Owners do not need a notification every time the process works. Establish green, yellow, and red thresholds. Green results require no intervention. Yellow results require manager attention and a documented plan. Red results require immediate escalation. This protects owner attention and gives managers clear responsibility.

Review trends, not isolated noise

A single missed inspection may be a human error. A pattern on one shift may reveal training or staffing. A pattern across stores may reveal a bad SOP, unrealistic expectation, or flawed system. Trend review helps owners manage the business instead of reacting to every data point.

10. The 30-60-90 Day Management System

First 30 days: learn and demonstrate

The employee should understand the company’s purpose, role outcomes, customer promise, safety boundaries, attendance standards, reporting channels, and core SOPs. Training should include demonstration, supervised practice, and a competency check—not merely a signature that materials were received.

Days 31–60: perform with light supervision

The employee should complete routine work independently, identify exceptions, use escalation channels, and meet basic quality and timing standards. The manager should reduce step-by-step direction while increasing outcome review. Coaching should focus on judgment, prioritization, and consistency.

Days 61–90: own the role

The employee should reliably deliver the role outcomes, contribute improvement ideas, and recover from normal problems within authority. The manager should decide whether the person is ready for full autonomy, needs a focused development plan, or is not a fit for the role.

Managers need their own 30-60-90 plan

Promoting a strong technician or attendant does not automatically create a manager. New managers need training in setting expectations, delegation, feedback, documentation, scheduling, conflict, safety leadership, and scorecard review. Gallup’s current research continues to identify managers as central to engagement and reports that managers account for a large share of variance in team-level engagement.[5]

11. Common Failure Modes

Too many procedures, too little priority

When everything is critical, nothing is. Identify the small group of non-negotiables that protect safety, customers, cash, equipment, and brand. Build those first. Expand the library in a controlled way.

The owner violates the SOP

Nothing destroys a standard faster than an owner who bypasses it whenever impatient. Employees quickly learn that procedures are optional and authority depends on who is present. Emergency exceptions should be documented and used to improve the procedure—not become the normal operating method.

Checklists become theater

A completed checklist can create false confidence. Verify the quality periodically, rotate audit items, compare records to conditions, and investigate improbable perfection. The objective is reliable work, not beautiful paperwork.

Different rules for favorites

Selective accountability ruins culture. Differences may be appropriate when roles, experience, accommodations, or circumstances differ, but the reason should be legitimate and explainable. Standards should not depend on whether the owner likes the employee.

Technology becomes surveillance

Cameras, GPS, timekeeping systems, photos, and digital checklists can improve safety and verification, but excessive or undisclosed monitoring can damage trust and may create legal concerns. Use the minimum monitoring needed for a legitimate business purpose, communicate the policy, protect access, and consult counsel on applicable privacy and labor requirements.

Managers correct but never teach

Repeating ‘do better’ is not coaching. Managers must explain the gap, demonstrate the standard, confirm understanding, observe practice, and follow up. If the same issue recurs, determine whether the cause is skill, clarity, capacity, process, or willingness.

12. The Leadership Ladder

Stage 1: the owner does

The owner performs the work and creates the first reliable standard.

Stage 2: the owner teaches

The owner demonstrates the work, explains why it matters, and watches others practice.

Stage 3: the business documents

The company turns recurring work into accessible procedures, checklists, decision rights, and escalation rules.

Stage 4: managers verify and coach

Managers review outcomes, spot-check controls, remove obstacles, recognize good work, and correct gaps.

Stage 5: employees improve the system

Employees are trusted to suggest changes, report near misses, identify waste, and strengthen procedures without hiding problems.

Stage 6: the owner governs the system

The owner reviews trends, talent, risks, capital, customer promise, and strategic priorities. The owner may still inspect—but inspection tests the system rather than replacing it.

Freedom is a designed result

The ultimate goal is not to remove the owner from reality. It is to ensure that the business delivers a safe, clean, dependable customer experience whether or not the owner is standing in the store. That consistency creates employee confidence, customer trust, management capacity, and enterprise value.

Micromanagement asks the owner to carry the business through personal vigilance. Leadership builds a business that can carry its standards through people and systems.

 

 

Practical Toolkit

Template 1: One-Page SOP

SOP title	[Clear name of recurring task]
Purpose	[Why this procedure exists and the outcome it protects]
Applies to	[Roles, stores, shifts, or equipment]
Owner	[Person responsible for accuracy and revisions]
Required tools/PPE	[Tools, access, forms, chemicals, PPE]
Procedure	1. [Step] 2. [Step] 3. [Step]
Quality standard	[Observable definition of successful completion]
Stop and escalate	[Conditions requiring work to stop or manager/technician/emergency response]
Documentation	[Checklist, ticket, photo, incident report, log]
Effective/review date	[Date] / [Date]

 

Template 2: Role Expectations Sheet

Outcome	Standard	Measure	Review cadence
Clean, safe store	Hourly inspection completed to standard; hazards escalated immediately	Audit score; unresolved hazards	Each shift / weekly
Reliable equipment experience	Outages tagged and reported promptly; no unauthorized repairs	Machine availability; repeat issues	Daily / monthly
Professional customer recovery	Complaints acknowledged promptly; refunds within authority and policy	Response time; escalations	Weekly
Accurate controls	Cash, refunds, keys, and logs reconcile	Exceptions	Each shift / monthly

 

Template 3: Weekly Manager Review

• Review safety incidents, near misses, leaks, and unresolved hazards.
• Review machine availability, repeated outages, and overdue repairs.
• Spot-check cleanliness standards rather than reviewing only completed checklists.
• Review customer complaints, refunds, recovery actions, and response time.
• Review cash or payment exceptions and access-control issues.
• Review staffing, attendance, training, and upcoming schedule risks.
• Recognize specific examples of strong performance or judgment.
• Choose no more than three corrective priorities, assign owners, and set due dates.
• Capture SOP changes or training needs revealed by the review.

Template 4: Coaching Note

OBSERVATION What happened? Use facts, dates, locations, and direct observations—not labels about attitude or character.

 

STANDARD AND IMPACT What expectation or SOP applies? Why does the gap matter to safety, customers, coworkers, equipment, cash, or the company?

 

EMPLOYEE PERSPECTIVE What does the employee say happened? Was there a clarity, training, tool, workload, or process issue?

 

COMMITMENT AND FOLLOW-UP What will change, what support will be provided, how will success be measured, and when will the manager follow up?

 

Template 5: Decision-Rights Matrix

Decision	Employee owns	Notify manager	Approval required
Tag and remove a visibly malfunctioning machine from service	✓	✓
Issue refund within policy limit	✓
Refund above policy limit			✓
Call emergency services	✓	✓
Open electrical, gas, or locked technical compartment			Qualified/approved personnel only
Offer approved customer recovery		✓	Depending on value
Commit company to vendor expense			✓

 

Implementation: The First 30 Days

1. Choose five high-risk or high-frequency processes: opening/closing, hourly inspection, refund handling, machine outage/leak response, and cash or payment control.
2. Observe the actual work and interview reliable employees about common exceptions.
3. Draft one-page SOPs with explicit stop-and-escalate boundaries.
4. Test each procedure with an employee who did not write it.
5. Train all affected employees using demonstration and supervised practice.
6. Define three to six outcome measures and a known review cadence.
7. Begin weekly manager reviews focused on exceptions, recognition, and corrective commitments.
8. At day 30, revise the SOPs based on real use and publish controlled versions.

Sources and Further Reading

1. Gallup, “How to Measure Employee Engagement With the Q12,” Clear expectations as a foundational employee need; alignment between job description and actual work.
2. Occupational Safety and Health Administration, “Safety Management—A Safe Workplace Is Sound Business,” Proactive safety and health management, goals, monitoring, worker participation, and continual improvement.
3. Occupational Safety and Health Administration, “Develop Your Safety + Health Program,” Management leadership, worker participation, and systematic hazard identification and correction.
4. Occupational Safety and Health Administration, “Safety Management—Education and Training,” Role-specific training, understandable instruction, reporting, feedback, and training after changes in tasks or processes.
5. Gallup, “3 Employee Engagement Strategies for 2026,” Manager influence on team-level engagement and the importance of development, expectations, recognition, and coaching.
6. Occupational Safety and Health Administration, “Small Business,” Small-business resources, sample programs, training resources, recordkeeping, and confidential consultation.
7. Occupational Safety and Health Administration, “Safety Management—Explore Tools,” Implementation checklists, audit tools, leading indicators, example programs, and job-hazard-analysis resources.
8. Michael E. Gerber, The E-Myth Revisited, The need to create repeatable business systems rather than relying entirely on owner heroics.
9. W. Edwards Deming, Out of the Crisis, Systems thinking, quality management, learning, and the responsibility of management for process design.
10. Patrick Lencioni, The Advantage, Organizational clarity, leadership alignment, communication, and reinforcement.
11. Gino Wickman, Traction, Accountability, scorecards, defined processes, and operating cadence.
12. National Laundry Equipment operational guidance and industry experience, Laundromat-specific examples involving cleanliness, machine availability, service, payment controls, preventive maintenance, customer recovery, and management systems.

Editorial note

This publication synthesizes management research, safety-program principles, small-business operating practices, and laundromat-specific experience. It is intended as educational material. Owners should tailor SOPs to their equipment, facilities, staffing model, insurance requirements, state and local law, manufacturer instructions, and professional advice.