An expansion tank needs little attention, but a quick check now and then catches the failure before it drips. The maintenance is mostly about the air pressure.
The tank
The expansion tank absorbs water growth, and its air bladder does the work. freezing winters put stress on exposed lines, and many older homes still have aging galvanized pipes In Rockville, the tank sits on the cold line near the heater.
The tap test
Tapping the tank tells you if it is full of air or water. freezing winters put stress on exposed lines, and many older homes still have aging galvanized pipes In Rockville, a hollow sound means air, and a thunk means water.
The pressure
The air side has a set pressure, checked with the system drained. freezing winters put stress on exposed lines, and many older homes still have aging galvanized pipes In Rockville, the pre-charge matches the home's pressure.
The leak
A drip from the tank or the fittings means attention, often a failed bladder. freezing winters put stress on exposed lines, and many older homes still have aging galvanized pipes In Rockville, a waterlogged tank needs replacing.
The relief
If the tank fails, the heater's relief valve may drip as the pressure climbs. freezing winters put stress on exposed lines, and many older homes still have aging galvanized pipes In Rockville, the drip points to the tank.
The schedule
Check the tank at the yearly flush and test the pressure then. freezing winters put stress on exposed lines, and many older homes still have aging galvanized pipes In Rockville, a pro can test and replace the tank.
The call
Keep the tank holding air. Call 888-217-3585 and Rockville Plumbing Helpers will match you with a Rockville pro for the service.
Plumbing in Rockville: what to know
In Rockville, freezing winters put stress on exposed lines, and many older homes still have aging galvanized pipes. Pros in our network know the local quirks and bring the right parts on the first visit.
Across Montgomery County — from Gaithersburg, Takoma Park and College Park to ZIP codes like 20850, 20851, 20852 — homeowners deal with the same kinds of issues. The tips above apply locally, and when a job goes beyond a quick fix, a vetted local pro is only a call away.
Need a hand in Rockville?
If a plumbing issue is beyond a quick fix, don't wait for it to get worse. Call 888-217-3585 and Rockville Plumbing Helpers will match you with a vetted local pro — usually within minutes. Learn more about plumbing help in Rockville.