Plumbing Maintenance Checklist for Houston Restaurants: Monthly, Quarterly, and Annual Tasks

Successful Houston restaurant operators run their facilities like machines — every system on a schedule, every component inspected before it fails. Plumbing is no different. The restaurants that never deal with health code violations, drain emergencies, or unexpected closures aren't lucky — they're systematic.

This checklist, built by MKMaintX's licensed Houston plumbing team based on years of commercial kitchen service across the Greater Houston metro, covers every plumbing task your restaurant needs to perform on a regular schedule.

Weekly Tasks (Recommended Professional Service)

✅ Kitchen Floor Drain Treatment and Inspection

• Apply enzyme drain treatment to all kitchen floor drains
• Clean and inspect drain strainers
• Perform drain flow test on each drain
• Note any drains with reduced flow for follow-up

MKMaintX handles this for $69.99/week for restaurants with up to 6 kitchen floor drains.

✅ Grease Trap Visual Inspection

• Open grease trap access cover and visually assess FOG fill level
• Note fill percentage and compare to prior week
• Flag if fill rate is accelerating (may indicate kitchen operational change)
• Schedule pump-out when fill reaches 25% capacity

✅ Pre-Rinse Spray Valve Check

• Test spray valve pressure and pattern
• Check for scale buildup on nozzle head
• Confirm no continuous drip (a dripping pre-rinse valve wastes 6,000+ gallons/week)

Monthly Tasks

✅ Handwashing Station Audit

• Confirm all designated handwashing sinks are unobstructed and stocked
• Test hot water temperature (minimum 100°F per Houston health code)
• Check soap dispenser function and supply
• Verify paper towel or hand dryer availability

✅ Three-Compartment Sink Inspection

• Check all three compartments drain freely
• Test water temperature in wash compartment (minimum 110°F)
• Inspect drain stoppers and strainers
• Check drain connection to floor drain for proper indirect connection

✅ Mop Sink Inspection

• Confirm mop sink drains freely
• Check air gap between water supply and mop sink (required by Houston plumbing code)
• Inspect faucet for drips or damage

✅ Ice Machine Drain

• Confirm ice machine drain line flows freely
• Check for scale buildup around drain connection
• Verify indirect drain connection (air gap) is present

✅ Restroom Plumbing Check

• Test all toilet flush mechanisms (flapper, flush valve, sensor)
• Check all sink faucets for proper function and temperature
• Inspect all supply stops under sinks for drips or corrosion
• Test all floor drain flow in restrooms
• Check water pressure at all fixtures

Quarterly Tasks

✅ Grease Trap Pump-Out (as needed based on weekly inspection)

• Engage licensed grease trap pumping company
• Confirm waste manifest documentation is retained (required by Houston regulations)
• Inspect trap interior after pump-out for damage or deterioration
• Note pump-out volume for trending

✅ Water Heater Inspection and Service

• Check water heater for scale sounds (rumbling, popping)
• Inspect pressure relief valve for dripping or evidence of prior discharge
• Check gas connections (gas units) for signs of corrosion or leaks
• Test temperature at furthest hot water fixture (should be within 5°F of thermostat setting)
• In Houston's hard water environment: drain and flush sediment from tank bottom

✅ Grease Trap Inlet Line Inspection

• Run flow test from kitchen drains to trap
• If flow is slow, consider hydro jetting the inlet line

✅ Backflow Preventer Inspection

• Visual inspection for leaks, corrosion, or physical damage
• Note scheduled annual test date

Annual Tasks

✅ Backflow Preventer Test and Certification

• Schedule with TCEQ-licensed tester (MKMaintX provides this service)
• File test results with Houston Water or applicable utility
• Retain compliance certificate
• If device fails: repair and re-test in same visit

✅ Main Sewer Lateral Inspection (every 3–5 years for lines over 20 years old)

• Video camera inspection of sewer lateral from cleanout to main
• Assess for root intrusion, joint separation, offset, or bellied sections
• Hydro jet if significant buildup observed

✅ Water Heater Anode Rod Inspection

• Commercial water heater anode rod should be inspected annually
• In Houston's hard water: replace if more than 50% depleted (typically every 2–3 years)

✅ Freeze Preparedness Walk (September–October)

• Inspect all exterior and attic pipe runs for adequate insulation
• Test all exterior shut-off valves for function
• Verify heat tape installations are operational

Building a Maintenance Log

Maintain a physical or digital maintenance log for all plumbing services:

• Date and description of service performed
• Technician name and license number
• Any findings or follow-up actions
• Grease trap pump-out volumes and dates
• Backflow test results and compliance certificates

This log is your first line of defense when a Houston HDFCS inspector asks about your maintenance practices.

Let MKMaintX Manage Your Houston Restaurant Plumbing

MKMaintX's $69.99/week maintenance program handles the weekly tasks on this checklist automatically — enzyme treatment, strainer cleaning, flow testing, and grease trap visual inspection — and provides the written service report that populates your maintenance log.

Call 1-800-669-5808 or contact us online to set up your program.

MKMaintX — licensed Texas plumbing contractor serving restaurants and commercial facilities across Greater Houston.