Faucet & Valve Repair in Marietta, GA

Faucet and valve repair is not limited to sinks and showers. Every tank water heater has a shutoff on its cold supply and a drain valve near the bottom, and both get ignored until the day they are needed. In Marietta homes, a common discovery during a water heater problem is that the supply valve will not close, so the heater cannot be isolated without shutting down the whole house, or that the drain valve drips after the first attempt to flush the tank.

The valves around a water heater

• Cold supply shutoff: on the inlet pipe, usually above the heater. Older installations often have a gate valve with a round wheel; newer ones tend to have a lever-handled ball valve.
• Drain valve: a hose-thread valve near the bottom of the tank, used to drain or flush sediment. Many are plastic.
• Temperature and pressure relief valve: a safety device on the top or side of the tank with a discharge pipe running toward the floor or outside.
• Tankless service valves: on tankless units, isolation valves on the hot and cold lines with small ports used for descaling.

When the supply shutoff fails

A gate valve that sat open for years may refuse to turn, or turn freely without closing because the gate has separated from the stem. Either way, the heater cannot be drained or serviced without closing the main. Stem leaks are also common, especially right after the valve is moved for the first time in years. Replacing it with a full-port ball valve gives a quarter-turn shutoff that shows at a glance whether it is open or closed. The swap is done with the main off and the heater cool, and the joints suit whatever pipe feeds it: copper, CPVC, PEX or flexible connectors.

A drain valve that drips

Plastic drain valves can crack, and sediment caught in the seat keeps many from closing tightly after a flush. A brass hose cap threaded onto the outlet can stop a slow drip in the short term, but the lasting fix is a new valve. That means shutting off the supply, letting the water cool, and draining the tank below the valve before it is unscrewed and a new brass or full-port drain valve is fitted. If the threads in the tank itself are damaged or rusted, the conversation shifts toward the heater's condition.

The relief valve is a different matter

Water dripping or discharging from the relief valve pipe is a sign to look at the heater's temperature, the household pressure or the valve itself, and it should never be plugged or capped. Diagnosing it belongs with gas water heater repair in Marietta or electric water heater repair, depending on the unit. When the cause is high incoming pressure or a missing or waterlogged expansion tank, water pressure and PRV service is the right visit. Tankless isolation valves that leak or will not close can be replaced during tankless water heater service.

What the visit involves

1. The heater is turned off or set to vacation mode according to the manufacturer's instructions, and the water is allowed to cool.
2. The main is closed and the lines are drained down at a low fixture.
3. The old valve is removed and the pipe ends are cleaned or cut back to sound material.
4. The new valve is installed, the main is reopened slowly, and the tank is refilled with a hot faucet open to purge air before the heater is turned back on.
5. The joints are checked under pressure and the valve is cycled once.

While the main is off for this work, a stuck stop elsewhere in the house can be replaced too; it all falls under faucet and valve repair.

Who applies for a permit in Marietta

Marietta's building division says a plumbing permit is needed for work on a plumbing system, including water supply lines. According to the city's homeowner permit page, plumbing permits there are applied for by the professional doing the work rather than by the homeowner.

Water heater valve questions in Marietta

How often should the tank be flushed through the drain valve?

Follow the heater manufacturer's guidance; many suggest flushing sediment periodically, and the right interval depends on the water and on how hard the heater works. The catch with an older plastic drain valve is that it may not reseal after years untouched, so the first flush on a neglected heater is a good moment to have a brass replacement on hand.

Can I just cap a leaking water heater drain valve?

For a short while. A cap on the hose outlet will hold back a valve that no longer closes fully and buys time until the repair. It does nothing for a cracked valve body or for water seeping around the threads where the valve enters the tank, and in either of those cases the valve has to come out.

Is water from the relief valve pipe a valve problem?

Not necessarily. The discharge may be the valve doing its job, opening because something else has pushed temperature or pressure too high, such as a faulty thermostat, high incoming pressure or a failed expansion tank. A worn valve is only one possibility, and capping the pipe is never the answer, so the heater should be looked at as a whole.

Talk to Alpha

If the shutoff above your Marietta water heater is stuck or the drain valve keeps dripping, call Alpha Plumbing and Sewer at (404) 409-4448 and say whether the heater is gas, electric or tankless.