Shower Pump Conundrum

3 Mar 2011
Reaction score
United Kingdom
Hi All,

I have just replaced a mixer shower in my shower room with a fancy new ceramic disc unit and the flow is unusable.

My house is a two storey detached and the cold feed comes from the main tank (in the attic) on a 22mm connection solely for this shower. The hot comes under the floor from the hot tank which is on the 1st floor in a cupboard at the other side of the house. The hot and cold feeds only come together at the shower mixer, one down the wall and one up the wall.

My understanding is that I need to pump both equally and so presume I need to bring the two feeds to the same place somewhere before the shower. This would mean routing the hot feed through the attic with a pump in the attic space or bring the cold down into the hot tank cupboard before sending back into the attic.

The hot tank cupboard is also off of a spare bedroom so pump noise could be an issue. I am unsure how sensible a pump in the attic might be.

I would appreciate your advice on how to engineer a solution!


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