Air Conditioner Condensate Drain Line

Air Conditioner Condensate Drain Line

Air Conditioner Condensate Drain Line

Typically located in a bathroom, under the counter of your faucet. The condensation from your air conditioner drains here.

Garbage Disposal Reset Button

Garbage Disposal Reset Button

Garbage Disposal Reset Button

If your garbage disposal stops working and you hear no sound, look underneath and push the button. This helps free up trapped particles.

Gas Line Cut-off Valve

Gas Line Cut-off Valve

Gas Line Cut-off Valve

Typically located at water heaters, furnaces, cooktops, BBQ grills, and dryers.

Manabloc Water Shutoff

Manabloc Water Shutoff

Manabloc Water Shutoff

If you have the Manabloc system in your home, you can turn off each water line to fixtures individually. Talk to your builder for more details.

Outdoor Faucet Vacuum Breaker

Outdoor Faucet Vacuum Breaker

Outdoor Faucet Vacuum Breaker

Located around the outside perimeter of your house, this prevents back siphon of water into your home’s water supply.

Mixing Valve

Mixing Valve

Mixing Valve

This valve mixes the hot and cold water to prevent scalding. It is sometimes found under the master bath tub faucet.

Tankless Water Heater

Tankless Water Heater

Tankless Water Heater

Your tankless water heater features a temperature and pressure relief valve. It is recommended that you have it flushed at least once a year.

Water Heater Expansion Tank

Water Heater Expansion Tank

Water Heater Expansion Tank

Located near your water heater, it adjusts your piping system to absorb thermal expansion that can occur from your water heater.

Water Heater Valve Cutoff

Water Heater Valve Cutoff

Water Heater Valve Cutoff

This valve turns off the water flow to your water heater.

Water Heater Drain Outlets

Water Heater Drain Outlets

Water Heater Drain Outlets

There are two purposes: The Water Heater Pan Drain Line drains any leaks, and the T&P Line relieves high pressure and temperature. Both serve as damage control. If you see water, call us: (210)967-6100

Water Heater Thermostat

Water Heater Thermostat

Water Heater Thermostat

Ideal temperature setting is 115°F. Anything higher could scald you or your children.

T&P Relief Valve

Water Heater Temperature and Pressure Relief Valve (T&P Valve)

T&P Relief Valve

Located on the top or side, it relieves pressure and prevents dangerous build up inside the water heater.

Vacuum Relief Valve

Water Heater Vacuum Relief Valve

Water Heater Vacuum Relief Valve

This valve prevents back siphon from the water heater and may be required by code.

Water Service Cutoff and Pressure Reducing Valve

Water Service Cutoff and Pressure Reducing Valve

Water Service Cutoff and Pressure Reducing Valve

Located by the meter in the front yard. The cutoff valve stops water flow, and the pressure reducing valve lowers pressure from the city line. (Contact us if you need pressure adjustments; do not attempt to adjust yourself.)

Water Service Cutoff and Pressure Reducing Valve

Sewer Cleanout Plug

Sewer Cleanout Plug

Typically found in the front yard, carefully unscrew the plug during a sewer backup until help arrives.

© 2026 Diamond Plumbing, LLC. All rights reserved | Privacy Policy