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Plumbing

shower with low pressure hot water and mains fed cold water

Anonymous user 03/03/2024 - 2.59 PM

Hi I have an electric property with no gas/boiler system. I want to fit a shower and cubicle and have mains fed cold water and hot water supplied by an immersion tank in a cupboard on the same floor therefore the hot water pressure is poor. It has been suggested I could pump the hot and also the cold mains - is this correct? The immersion tank on the first floor under a flat roof so there appears to no option to move this or get a header tank for additional pressure. Any suggestions as to which make of shower and pump and the arrangement which would work best? Will I need a part p tradesman to do this work? Thanks David

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4 Answers

Anonymous user

Hi David, have you considered an unvented direct hot water tank? These are mains fed and providing you have enough pressure would eliminate the need for pumps, header tanks etc. Any engineer on here would be qualified to do the work as Mybuilder are very strict on checking qualifications. Barring the unvented tank, you could install a pump and find it runs the tank feeding the hot water cylinder dry... particularly with Fortic cylinders

Answered6 June 2013

Anonymous user

It sounds like the cold pressure is good - it may be the simplest way would be to fit an electric shower, and yes the electrics would need part P.

Answered7 June 2013

Anonymous user

fit a salamader pump --problem solved

Answered14 June 2013

Martin House Plumbing Services

Rating: 4.8 out of 5

Lymington

All suggestions above are good but I'd avoid a pump if you have a low volume header. Providing the header is above the shower head, another lower cost option you might consider is a venturi type shower valve such as a Trevi Boost. With these the high pressure cold water draws the hot water through & boosts the flow rate. It works in a similar way to a carburetta where the air flow sucks fuel through, only in this case it mixes hot & cold water. Hope this helps

Answered11 November 2019