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If the pipes are old, it's most likely that corrosion has built up inside them. Some of this buildup may have become dislodged and clogged the path to the low-pressure faucet.

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2006-04-06 04:19:34
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Q: What would cause the hot water pressure to suddenly drop at one faucet but not at all the faucets?
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Related questions

What would cause a tub faucet to lose water pressure when the other faucets work?

check for leaks

What can cause loss of water pressure in a faucet when all other faucets work fine?

Unscrew the aerator from the end of the faucet where the water comes out and clean the screen. Sediment build up slows the flow.

What causes high water pressure in the first faucet on the water line from where it enters the house. The cold water is under high pressure but other faucets in house are fine.?

Possibly a pressure reducing valve installed after piping for first faucet, which would cause situation describing.

What would cause low water pressure in a bathtub faucet?

The faucet is clogged

What is the vibration sound in your pipes after you run water?

When your faucets are off, the water is sitting still. As soon as you open a faucet, water starts flowing out due to the pressure created by your water pump. Whenever you turn the water faucet off, the water supply is cut at the spigot and now all that water that was moving has now stopped, suddenly. Sometimes, when the pressure is too high, it can cause what is called water hammer. Water hammer is when a faucet is turned off, a shockwave is sent through the pipes, vibrating them sometimes throughout the entire house.

What would cause water pressure to drop at only 1 sink?

A clogged aerator on the end of the faucet would cause the water flow to decrease in that faucet.

What would cause a drastic drop in water pressure in all faucets?

A leak in the supply pipe.

What cause the black build up on your water faucet?

The black build up is mold. Yeah, gross huh? You should try Lysol spray on your faucets.

What would cause the cold water in all your faucets to have zero pressure but the hot water pressure is fine?

Lots of stuf can cause it including sediment or a blocked supply line

What causes a whistling noise coming from the shower faucet the faucet to fill the tub the whistling is constant Any ideas on how to fix it and if it going to cause serious problems?

A whistling noise coming from the shower faucet or when filling the bathtub could mean that there is excess air in the water line. This can be fixed by turning off the major water supply valve and then opening all of the faucets in the home for about 5 minutes. Shut all of the faucets off, then turn the water supply back on.

What could cause a leaky faucet?

A loose bolt or screw is the most common cause for a leaky faucet

Why does turning on one faucet cause significant pressure loss in every other faucet in the house?

Turning on one faucet will cause a pressure drop at any other faucet that is running, but you say it is a "significant" drop - that implies that you have low water pressure, period. You might to consult with a plumber to see if anything can be done - if you live in a house with very old steel plumbing pipes, replacing them can make a noteworthy difference (it's not cheap, of course). Or possibly, you have an unusually low pressure system, perhaps a gravity feed system. Installing a water pump will solve any inconvenience, such as the shower almost quitting when a toilet is flushed elsewhere.

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