I have poor water pressure out of the bath taps but basin pressure (on same run) is OK. The feed to basin is 22mm pipe reducing to 15mm then flexi connector to mixer tap. The bath is 22mm pipe to flexi to mixer tap.
The bath has a shower at the mixer. The flexy hoses are possibly smaller bore than they should although are 22mm to 3/4 fitting. Before changing the hoses has anybody had problems with blockages in the mixer tap assembly?
many things can cause this problem but do not take bobs advice and use vaseline as this would be in contradiction of the water regs. Get a plumber as this is what they train for years to do
steve the plumber, February 2010
If your felxi pipes are 22mm each end then that's the correct size. Reducing the size of the pipe can accelerat pressure but it would take age's for the bath to fill hence 22mm pipes and 22mm taps for dischargindg a larger volume of water.
If you have not had this problem in the past with same set up the I MIGHT be the taps if the same on both. Remove the taps innars [tap heads] clean and coat moving parts with vaselene and replace see what happens. Also look in the remaining tap body, on the bath, at the 'Seating' see if that's clean and free from lime.
Are/is the stop cock fully open? if not open fully but turn back 1/4 turn. (You should operate all stopcocks/check valves periodically to prevent sticking)
Lastly ensure neither flexi pipes are kinked as that will reduce flow.
