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Typically it's because of restricted flow, either from small pipes or from excessive mineral buildup on the inside of the pipes.

I honestly do NOT believe that water pressure "drops throughout the house" -How do you know that, have you measured it with a gauge at each faucet, or are you assuming. .

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11y ago
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12y ago

The supply of water needed by toilet as it refills is greater than what shower supply is, not actually a lack of pressure so much as a lack of water volume. Pipe sizing needs to be properly sized so this "pressure drop" won't occur. Installing a new shower pressure balancing valve should help with this problem if running new cold water lines of proper size isn't possible or practical.

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Q: Why when the toilet is flushed does the water pressure drop throughout the house?
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Can you get something back after you flushed toilet or is it gone forever?

Depends where the house trap is located


What should you do if your downstairs bathroom continues to run after the toilet is flushed and turning the valve off did not work?

check your pressure regulator valve or house pressure .Replace fixture stop and ballcock assy also r&r flapper


Will a ghost enter a bathroom?

If your toilet is flushed xD Jk but if you have a ghost haunting your house it'll enter any room


Why does the toilet in the back part of the house overflow when the toilet in the front part of the house is flushed?

Someone installed the plumbing wrong. Instead of the water going down into the main lead, it's taking the other toilets route and flooding over, an easy fix unless you have to tear up the floor.


What could be wrong if your bathtub gurgles when your toilet is flushed?

As water drains, it displaces air in the pipes. If the vent or vents in your house are clogged up, the air must find another way out, which could be another drain in your house.


My toilet on the second floor of the house willnot get rid of the waste the first time it is flushed but always works correctly the second time---what is wrong?

no offense, but u need professional help!


What do you do when toilet water is coming out of the tub when the toilet is flushed?

think the drain may be slightly blocked. Your best bet is to call a plumber now to fix it. If you leave it too long you may have toilet water coming up in other areas in your house. You can try to fix it yourself but most of the chemical treatments don't do a lot.


Why does your saimese kitten drink from the toilet?

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Why would cold water pressure fade in and out throughout a house?

poor water pressure from your city. Or if you are on a well, the pump might be going bad.


A ring got flushed down the toliet how can I or can I get it back?

If it was flushed then possibly it ended up in the main house trap if applicable


What would cause both toilets in your house to continue running after flushing. When I turn on any tap in the house it will stop.They both started doing this at the same time.?

water pressure in the house is too high. You will find an adjustable regulator somewhere between the meter and the house ,or in a basement situation, where the main line comes in. you can also try closing the valve, directly below the toilet tank, a turn or two this will decrease the pressure on that toilet only


Do you have a toilet?

Virtually every house has at least one toilet.