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This problem lies with your pipe sizes. If the pipes size of your main line does not equal the supply for demand this will result in the current problem. For example, if your whole house is fed with half inch piping and you open two taps the volume of water has to be shared from the half inch pipe, thus causing a drop in pressure. Whereas if one installed three quarter inch main line "t-ing" off to half inch, because the three quarter inch will hold a higher volume of water when two taps are opened and the water shared, the drop in pressure will be hardly noticeable.

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16y ago

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Related Questions

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.


How can I effectively reduce the water pressure in my faucet using a faucet pressure reducer?

To effectively reduce water pressure in your faucet using a faucet pressure reducer, you can install the reducer on the water line leading to the faucet. Adjust the reducer to lower the pressure to your desired level. This will help prevent excessive water flow and potential damage to your plumbing system.


We just had a new bathtub faucet installed and it leaks. The plumber claims it is due to low water pressure. Is that true?

No, too high of water pressure causes problems.


What could be causing low water pressure in my outside faucet?

Low water pressure in an outside faucet could be caused by a clog in the faucet, a leak in the water line, a faulty pressure regulator, or a problem with the main water supply.


What is the purpose of an outdoor faucet pressure relief valve and how does it function to regulate water pressure in the outdoor faucet system?

The purpose of an outdoor faucet pressure relief valve is to regulate and control the water pressure in the outdoor faucet system. It functions by releasing excess pressure in the system, preventing damage to the pipes and fixtures. This helps to maintain a consistent and safe water flow from the outdoor faucet.


What would cause low water pressure in a bathtub faucet?

The faucet is clogged


What is the meaning of all of a sudden low water pressure coming out of faucet?

well if you have a plugged aerator or your water line is corroded then that is usually the reason a faucet has low pressure if its just one faucet.


Can too high water pressure turn the faucet on?

no


How does water travel up into a faucet?

It is pushed by the water pressure in the system.


Can a faucet turn itself on because of pressure in the pipelines?

No. It takes much more than water pressure to turn on the water faucet. At most, there is a leak if anything at all.


What could be causing low water pressure in just one faucet?

Low water pressure in just one faucet could be caused by a clogged aerator, a faulty valve, a blockage in the pipe, or a problem with the faucet itself.


Does a roman tub faucet have good water pressure?

A Roman tub faucet does have good water pressure because it is made to do that. How good this is depends on how other brands perform in this area.