Plumbing Help Forum provides tips and advice from professionals in the Plumbing and Heating Trades, on how-to troubleshoot small maintenance or repair problems before calling in the professional.

Pressure Problem

For the Home-Owner faced with minor plumbing problems at home and willing to try his/her hand at fixing it before calling in the professional Plumber.

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Pressure Problem

Postby CBMerl » Sun Jan 17, 2010 12:24 pm

LOW PRESSURE
I've recently had a freeze where I am located and two pipes busted. Myself and my brother-in-law changed out these pipes and also changed out another that had a small drip, to be on the safe side.


But since the changes, the pressure has been off and on from the taps of our faucets? In my kitchen the pressure varies, when running alone. Yet the sprayer next to the faucets gets pressure when they do not.

I did have to clean out the filters in my faucets because little rocks and things were in there.

Also my toilet was not running before the pipes busted and since, it has been.

Any suggestions? My pipes are beneath my house and since the fixes we have made, I am been constantly checking to see for other noticable leaks and there are none.

Beforehand, I highly appreciate those who lend me a hand. Thank you.

(Everything we replaced was a half-inch CPVC piping. We need replace a metal pipe about 13 feet long (had the small drips) with the CPVC.
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Re: Pressure Problem

Postby DUNBAR » Tue Jan 19, 2010 10:19 pm

When you mention metal piping, are describing galvanized piping or copper piping? If it is galvanized, the problem with reconnecting to these types of pipes will disturb the buildup inside them, and there will be issues as a result.

Let us know what type of piping you are dealing with.
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Re: Pressure Problem

Postby Darth Do'Urden » Mon Feb 01, 2010 7:48 pm

I have this exact same problem (and root cause)!

Also an old home, the plumbing system is a complete frankenstein. Qwest, Pex, Copper, Galvanized...everything but PVC. I know that when I changed the bathtub faucet the cold water pipe, which is galvanized, had a lot of crap disturbed inside it. Now, I have no cold water pressure at all at this faucet, but have it elsewhere in the house.

Additionally, the overall pressure of both cold and hot has diminished since the repairs, though there are no leaks anywhere and the main valve is fully open (at the street).

So could there possibly be so much crap in the galvanized line(s) disturbed that we (the original poster as well as myself) have clogs without realizing it?

PS: I hate galvanized pipes. Friggin' trash.
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