Plumbing Guides for Homeowners

Each guide starts with a short answer, then explains the steps, the warning signs and when to stop and call a pro.

Emergencies

Residential water meters on a supply pipe

How to Shut Off the Water to Your House

Turn the main shutoff valve clockwise until it stops, or turn a lever handle a quarter turn so it sits across the pipe. It's usually where the water line enters the house, or at the meter near the street.

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Seasonal

Frozen pipe covered in snow against a building wall

How to Prevent Frozen Pipes in Winter

Insulate pipes in unheated spaces, seal drafts, disconnect garden hoses, keep the heat at 55°F or higher, open cabinet doors on exterior walls and let faucets drip when temperatures drop into the teens.

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Water heaters

Wall-mounted water heater in a laundry room

Water Heater Leaking? What to Do Right Now

Turn off the cold water supply valve on top of the heater and shut off the power or set the gas to off. Then find the source: fittings and valves can be repaired, but a leak from the tank itself means the heater must be replaced.

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Technician working on a wall-mounted heating unit

Tank vs. Tankless Water Heater: Which Is Right for You?

Tank heaters cost less to buy and install and are simple to replace. Tankless heaters cost more upfront but supply endless hot water, take less space and last longer. Your gas line, venting and how long you'll stay usually decide it.

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Leaks

Signs of a Hidden Water Leak (and How to Check)

Watch for a rising water bill, a meter that moves with all water off, musty smells, stains, bubbling paint, warm floor spots and the sound of running water. The water meter test confirms a leak in about 15 minutes.

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Drains and sewer

Main Sewer Line Clog: Signs and What to Do

If more than one drain is slow or backing up, especially the lowest toilet, tub or floor drain, the main sewer line is probably clogged. Stop running water and call a plumber to clear the line from a cleanout.

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