The knocking in the cold lines usually comes from the loose pipes or the pressure surge. The cold water flow sets the pipes moving.
The knock
The knocking follows the cold water running through the walls. rain and older housing stock mean corroded fittings and slow drains show up often In Olympia, the knock is the movement.
The loose
The loose pipes knock against the framing and the joists. rain and older housing stock mean corroded fittings and slow drains show up often In Olympia, the hangers are the fix.
The surge
The pressure surge at the start and the stop moves the lines. rain and older housing stock mean corroded fittings and slow drains show up often In Olympia, the surge is the shock.
The hammer
The quick-stop valves cause the hammer in the cold lines too. rain and older housing stock mean corroded fittings and slow drains show up often In Olympia, the arrestor is the fix.
The movement
The pipes need the room or the cushion to move without the knock. rain and older housing stock mean corroded fittings and slow drains show up often In Olympia, the cushion is the fix.
The fix
The securing and the arrestors end the knocking. rain and older housing stock mean corroded fittings and slow drains show up often In Olympia, the fix is the repair.
The call
Quiet the cold-line knocking. Call 888-217-3585 and Olympia Plumbing Helpers will match you with an Olympia pro for the fix.
Plumbing in Olympia: what to know
In Olympia, rain and older housing stock mean corroded fittings and slow drains show up often. Pros in our network know the local quirks and bring the right parts on the first visit.
Across Thurston County — from Tumwater, Lacey and Dupont to ZIP codes like 98505, 98501, 98506 — 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 Olympia?
If a plumbing issue is beyond a quick fix, don't wait for it to get worse. Call 888-217-3585 and Olympia Plumbing Helpers will match you with a vetted local pro — usually within minutes. Learn more about plumbing help in Olympia.