Hi There,
In my bathroom I have installed a bath/shower mixer tap with a chrome rigid riser going upto a wall mounted shower head. The tap was billed as a low pressure tap (0.2 bar) and while I knew the shower pressure wouldn't be immense I was expecting a fairly usable shower.
Problem is despite the loft tank being c2.5 metres above the bath, the hot water pressure is insufficient to prevent the mixer tap from diverting the flow back to the bath when you are trying to use the shower (diverter button on tap drops back down). This applies even when attaching a temporary shower head and using it at the level of the taps rather than the shower riser height. I can hold the button up and get an ok flow but obviously that is not practical.
After a bit of googling I have discovered the Grundfos UPA 15 90 Booster Pump with flow switch. This claims to boost pressure by 0.5 to 0.75 bar which sounds ideal as it should be sufficient for my needs and for c£100 should see me through until the boiler is replaced with a combi somewhere down the line.
My question is can this pump be simply installed with adjacent isolating valves alongside the hot cylinder as per the attached sketch without causing water to be pumped back up the overflow pipe or are there other pipework modifications required?
Any help greatly appreciated. Many thanks in advance.
In my bathroom I have installed a bath/shower mixer tap with a chrome rigid riser going upto a wall mounted shower head. The tap was billed as a low pressure tap (0.2 bar) and while I knew the shower pressure wouldn't be immense I was expecting a fairly usable shower.
Problem is despite the loft tank being c2.5 metres above the bath, the hot water pressure is insufficient to prevent the mixer tap from diverting the flow back to the bath when you are trying to use the shower (diverter button on tap drops back down). This applies even when attaching a temporary shower head and using it at the level of the taps rather than the shower riser height. I can hold the button up and get an ok flow but obviously that is not practical.
After a bit of googling I have discovered the Grundfos UPA 15 90 Booster Pump with flow switch. This claims to boost pressure by 0.5 to 0.75 bar which sounds ideal as it should be sufficient for my needs and for c£100 should see me through until the boiler is replaced with a combi somewhere down the line.
My question is can this pump be simply installed with adjacent isolating valves alongside the hot cylinder as per the attached sketch without causing water to be pumped back up the overflow pipe or are there other pipework modifications required?
Any help greatly appreciated. Many thanks in advance.