Skip to main content
Reg 9 · Rule 6 New gas water heater installations end January 1, 2028 in the Bay Area. Existing units are unaffected. See how it affects your replacement →

Taking Care of Your Water Heater

Thursday, April 23, 2020
faucet drip

If your water heater breaks down, you can get an expert to do water heater repair in Pleasanton, CA, but a little preventive maintenance should keep it flowing reliably and extend its life for years. Before starting, make sure to turn off the power (for electric water heaters) or the gas supply (for gas heaters).

Do a Mini-Flush

Place a large bucket under the drain valve at the bottom of the water heater tank and turn the valve counterclockwise to release a couple of gallons of water into the bucket. It’s important to note that the water will be very hot, so take care not to burn yourself. Close the valve by turning it clockwise. If the valve will not open, contact a plumber for water heater repair.

Test the T&P Valve

To test the valve, place a bucket under the end of the discharge tube connected to the T&P valve. Lift the lever of the valve to open it manually. This releases hot water into the bucket. Warning — this water will be very hot. Let the water flow for a few seconds, then let go of the lever. Allow it to snap back, shutting off the water. If the T&P valve does not open and release water or if it leaks after the test, you will need water heater repair to replace the valve.

Dial Down the Temperature

On a gas water heater, turn the temperature dial on the heater’s gas valve to 120° F.

For an electric water heater, you may need to remove a small metal panel covering the thermostat.


Recent Posts

Certified On The Equipment We Install

A.O. SmithGas · ElectricNavienTanklessBradford WhiteGas · HPWHNoritzTanklessRheemGas · HPWHAmerican StandardGas BoschGas TakagiTankless
Trusted & Dependable

We'll give you our very best. Licensed and insured water heater specialists.

Top notch, 5 star quality on every service call.

★★★★★Tank replacement · Bay Area
Joseph arrived promptly and diagnosed the issue fast. He explained the work, the timeline, and each part as it went in. Very professional and competent.
Karen WilcoxVerified · 2026
★★★★★Repair · San Diego
Lee arrived quickly, identified the problem, and solved it fast with no upselling. I'd recommend him to anyone who needs service.
ArmanVerified · 2026
★★★★★Tank replacement · Bay Area
Best customer service on a water heater, ever. We had three leaks and needed a new unit. Joseph showed up in a heatwave with a great attitude.
Michael BuckVerified · 2026
Response coverage

Fastest possible scheduling. Arriving ASAP to get your hot water back up and running.

Vans stationed across the region, stocked for the failures that actually happen. When you call, we get you on the schedule as soon as possible and give you a real arrival window — not an all-day guess. Typical windows by service area:

Harris water heater technician on a Bay Area installation
Bay Area
Service area
Cities covered
East Bay
Oakland, Berkeley, San Leandro, Castro Valley
San Francisco & Peninsula
San Francisco, South San Francisco, Redwood City
Tri-Valley
Dublin, San Ramon, Pleasanton, Livermore
South Bay
San Jose, Santa Clara, Sunnyvale
Sacramento / Placer Counties
Countywide
All cities and communities in Sacramento / Placer Counties
San Diego County
Countywide
All cities and community in San Diego County