Question about Plumbing
Faucet makes high pitch whistle when turned on full pressure on non spray feature???
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Posted on Jan 02, 2017
I'm Harvey the Master Plumber.
You want to know if you can fix a sudden low volume /pressure delivery problem on an American Standard model AS4205100 H7, one hole / single lever with pullout spray And is it fixable by owner?
Yes and maybe!
All plumbing systems are plauged with debrie buildup. Every time you turn on a faucet the water starts moving and will bring bits of debrie up from the water main or well. Most are small and will pass through to be caught by the screen in the aireator. Sometimes a relatively large piece comes along and dosen't make it through to the screen. It is stuck in the body of the valve.
Fixing takes a little mechanical ability.
First, turn off the water to the faucet in question. Then carefully disasemble paying close attention to the order of disasembly so you can reverse the order when putting back together. As each part is removed inspect it for that troublesome bit. I find that a little bit of wire or a paper clip is helpfull. Carefully reasemble. If the volume is still low then you missed finding that bit. Try again or call in a local pro.
Feel free contact me again!
Please give me a rating here at fixya.com before you sign off
Harvey your Master Plumber
Posted on Sep 10, 2008
Your problem is a simple one.
Posted on Dec 05, 2008
My best guess is the supply valve for the hot side isn't open all the way. This valve is right on the valve and is accessed by taking off the front cover plate. This would still allow the pressure balancing valve to let water through but then you would have a small flow on the hot side.
If this isn't it then then cartridge is bad.
Please rate this response and good Luck,, phil
Posted on Dec 31, 2008
there is always water pressure on the sprayer when water is on. if sprayer is leaking check if trigger is stuck in . best to just change the sprayer handle it comes off at the base of the handle
Posted on Jul 20, 2009
Try draining the system and apply air pressure (min 30psi) to each faucet. Open other hot water faucets to allow pressure to vent. Next try draining and cleaning the hot water tank.
Posted on Oct 24, 2009
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