Water Pressure / PRV Service in McDonough, GA

Owners of newer homes often assume the plumbing will need nothing for years. The pressure-reducing valve is worth an early look anyway: it was set once, while the house was being built, and nobody may have touched it since. A water pressure check on a recently built McDonough house is usually a short visit, but it can catch a setting or a tank problem before it starts wearing out brand-new fixtures.

Why a new house still deserves a pressure check

During construction, the regulator may have been left at its factory preset or adjusted quickly during final inspections, when the goal was simply to have water flowing. Street pressure can also change over time as a utility adjusts its system. A third possibility is a regulator that was set correctly but is now held partly open by debris. None of these shows up on a walk-through, and all of them show up on a gauge.

Construction debris and the strainer

New plumbing systems carry bits of solder, pipe shavings, thread sealant and sand from the water main in their first months of use. Much of it lands in faucet aerators and showerheads, but some lodges in the strainer inside the regulator or on the valve seat. A clogged strainer cuts flow throughout the house, while grit on the seat can stop the valve from closing fully, letting pressure creep up overnight. Cleaning the strainer, flushing the lines and clearing aerators usually sorts it out.

The expansion tank's air charge

Many newer homes include a thermal expansion tank beside the water heater. Tanks leave the factory with an air precharge that may not match the house, and the tank maker's instructions generally call for setting it to the home's static pressure. If that step was skipped, the tank absorbs less of the heater's expansion than it should, and the relief valve may drip or the pressure may spike after hot water use. Checking and adjusting the charge is a quick job once the tank is isolated. If the heater itself needs attention, gas water heater repair is handled separately.

If the builder still handles service requests

Report a high reading or a dripping relief valve to the builder first while they are still responding to service requests for the house; the terms of your purchase decide who fixes what. Write down the readings with the date and time, and take a photo of the gauge. If you are past that stage, or the builder's answer does not settle it, an independent pressure test gives you a clear record. For additions or a finished basement being plumbed now, new construction plumbing is the place to plan pressure from the start.

Appliances and fixtures in a newer home

Washing machines, dishwashers, refrigerator ice makers and many faucets come with installation instructions that list an acceptable inlet pressure range. Running them well above it shortens the life of inlet valves and seals, and staying within the stated range can matter for the manufacturer's warranty. A single gauge reading tells you whether the house is in range. A faucet that drips even at normal pressure needs faucet and valve repair rather than a regulator adjustment.

Simple checks for the first few years

• Find the regulator and the main shutoff, and make sure both can be reached.
• Take a gauge reading at a laundry or hose connection once a year, and note it.
• Tap the expansion tank: hollow over the air side is good, dull from end to end is not.
• Glance at the relief valve discharge pipe for drips or mineral trails.
• Unscrew and rinse aerators if flow at one fixture drops.

Who handles plumbing permits in McDonough

Inside the city, the Building & Inspection Division reviews plans, issues permits and inspects construction, with plumbing permits on their own application form. Whether a valve adjustment or replacement needs a permit is a question for that division.

New-home PRV questions in McDonough

Does a newly built house have a pressure-reducing valve?

Many do, especially where street pressure is high enough that codes call for one, but not every new house has a regulator. Look near where the main line enters, close to the main shutoff, for a brass valve with a bell-shaped top and an adjusting screw. If there is none, a gauge reading shows whether one is needed.

Why is the water pressure so high in my new house?

The usual reasons are a regulator left at a high setting, a valve held open by construction debris, or no regulator at all where street pressure runs high. Thermal expansion can also push pressure up after the water heater runs. An overnight reading with a max-needle gauge shows which pattern you have.

Is an expansion tank required in a new house?

Model plumbing codes generally call for a way to control thermal expansion when a regulator or check valve closes the system, and many builders install a tank for that reason. Whether your house needed one depends on the code the city enforces. If a tank is already there, the more practical question is whether its air charge matches your house pressure.

Start on the right footing

Moved into a newer McDonough home and never checked the pressure? Call Alpha Plumbing and Sewer at (404) 409-4448 to have the regulator and the expansion tank tested and set where they belong.