- September 28th, 2019, 7:44 pm
#5773
Hi all
I recently carried out a bathroom refurb and fitted a new shower with standard mixer valve. The customer had complained about low hot water pressure on her previous shower and she asked me if i would fit a shower pump, not something i had done before and something i would normally sub out. However, i was struggling under time constraints and had to give it a go so fitted a slamander CT55+ extra pump soley on the 22mm hot feed from the cylinder, i appreciate in this arrangement it does the whole house and not just the shower. Its a Gravity fed system, with two large CW tanks, the cold from tank in loft direct to the shower and the HW feed from the pumped side. The HW cylinder is on a shelf at the back of the bathroom, so more or less about level with the shower and the pump is sited at the base of the cylinder. I have a good head of about 70 to 80cm from bottom of CW tanks to the top of shower head but the pump is hunting even without any other outlets open elsewhere in the house. Initially i thought it might be head pressure but im pretty sure that checks out so im struggling for where to go next. I might also add that i havent fitted a Surrey flange or similar and the pump is noisy but im not convinced that pump aeration is causing the hunting problem. Any help would be much appreciated. Thanks
I recently carried out a bathroom refurb and fitted a new shower with standard mixer valve. The customer had complained about low hot water pressure on her previous shower and she asked me if i would fit a shower pump, not something i had done before and something i would normally sub out. However, i was struggling under time constraints and had to give it a go so fitted a slamander CT55+ extra pump soley on the 22mm hot feed from the cylinder, i appreciate in this arrangement it does the whole house and not just the shower. Its a Gravity fed system, with two large CW tanks, the cold from tank in loft direct to the shower and the HW feed from the pumped side. The HW cylinder is on a shelf at the back of the bathroom, so more or less about level with the shower and the pump is sited at the base of the cylinder. I have a good head of about 70 to 80cm from bottom of CW tanks to the top of shower head but the pump is hunting even without any other outlets open elsewhere in the house. Initially i thought it might be head pressure but im pretty sure that checks out so im struggling for where to go next. I might also add that i havent fitted a Surrey flange or similar and the pump is noisy but im not convinced that pump aeration is causing the hunting problem. Any help would be much appreciated. Thanks