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Plumberpro
Plumberpro, Plumber
Category: Plumbing
Satisfied Customers: 634
Experience:  Heating and plumbing answers. 20 years experience
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A humming sound when i turn on the tapes or flush the toil

Customer Question

A humming sound when i turn on the tapes or flush the toilet
Submitted: 2 years ago.
Category: Plumbing
Expert:  Plumberpro replied 2 years ago.
Hi . mains pressure builds up over night as its not being used as it is during the day. As this extra pressure is released when taps / toilet is used in thgev morning it can cause more sound( worst case ,water hammer ) in the system.
Options are 1 fit a drop tight pressure reducing valve that will keep the pressure regulated and not allow it to rise during the night.
2 fitting a water hammer arrester( basically a small vessel that takes up extra pressure in he system.
3 fit a different type of toilet filling valve called equilibrium valve , made by torbeck.( works in some cases)