Ready to hire?

Post your job in minutes, browse real reviews and choose who to speak to.Post a job

Need some tips or advice?

Plumbing

Hot water booster pump compatibility with shower pumps

Anonymous user 16/03/2024 - 2.45 PM

Hello, I recently moved into a 1950 house with an open vented system, pumped central heating and gravity domestic hot water. HW tank upstairs airing cupboard. We would like to improve the hot water pressure inc higher pressure taps. We have two pumped showers, 1 pump located in loft above upstairs digital shower over bath. Downstairs, the hot water feeds for the kitchen tap and tee'd here for extension taps, with an additional tee for the 2nd pump which is situated underneath the kitchen sink for a mixer shower. Is it possible to add a booster pump (alike Grundfos+0.5-0.75bar) H/W only, close to H/W tank and keep the shower pumps? Or something more extensive, uprated booster pump and possible deletion of the downstairs shower pump? Additionally need for non-return valves to stop shower pumps activating with tap usage? Many thanks in advance.

Are you a tradesperson and able to answer this question?

4 Answers

Plumbvented

No reviews yet

Kidderminster

Hi depending on your in coming pressure I'd be more inclined to fit an unvented cylinder then you would have mains pressure all around the house pumps are ok for a shot term fix or one for a shower.

Answered5 January 2022

Black and White Plumbing and Heating

No reviews yet

Swansea

I would be inclined to look at your heating and hot water set up and consider changing for an unvented cylinder or combi boiler depending on the size of your property and water usage that way your pressure will be sufficient for your showers set up I wouldnt recommend more than one shower pump in a property, In this scenario I would be more inclined to suggest an electric shower for the second bathroom if cylinder replacement is unwanted or precluded by cost.

Answered5 January 2022

Anonymous user

You not allowe to pump a pumped feed. If you want to add an addtional pump. Add a larger pump that can cope with all outlets and both showers. Or as the previous answer go over to unvented but it does depend on how good the incoming main to the property is. Kind regards John

Answered16 January 2022

HandyONeill

Rating: 5 out of 5

St Albans

Depends what you want to spend. A simple solution is to connect the hot water to one of the pumps. I do this in Ireland. Same pump does shower and taps. No problem 3 years later. I don't understand why you need another pump. The more expensive and longer term option is to fit a mains pressure unvented cylinder, but in an old house more work.

Answered27 January 2022