Plumbing

Water Pressure improves while another tap is running

Anonymous user 23 February 2024 - 3.18 PM

Hi Recently our bathroom was renovated and when we first used the new shower the water pressure was extremely low. By chance while I was in the shower one day my partner turned on the hot water tap in the bathroom, immediately the water pressure increased, and increased further after the tap was turned off. Now we always turn on the shower, then turn on the hot water tap, then turn it off to have decent water pressure. What could be causing this though? Normally I would expect the water pressure to go down when other taps are used, not up. ________________________________________________ Thank you very much for your answer - I don't believe it is a gravity fed system, I have a hot water cylinder, no cold water storage. I tried running the water through the shower head with it down low as you suggested - but didn't get any sputtering, and it didn't improve the water pressure. There are two showers in the house and they both have the same issue - both showers and hot water cylinder are ground level. _______________________________________________________ Once again thank you so much for your response, the problem did end up being an airlock as you had suggested. I turned off the main water supply to the house, and opened the furthest outlet, which was a tap outside, once all the water had drained I turned the mains back on and the problem seems to be fixed. While the tap was draining there were periods where just air came out then water continued to flow. Thanks for your help!