Our domestic shower is fed by a Newteam 'Showerforce Turbo' shower pump. This pump has hot and cold feeds and has a variable speed control (currently set at less than half the maximum setting). The pump is installed in the airing cupboard, about 12" above the top of the hot water cylinder. The pump is fed directly from the pipe at the top of the cylinder. The cold water feed comes from the cold water tank in the loft. The shower head is very close by.
Our problem is that the pump is very noisy - guaranteed to wake anyone sleeping in the bedroom where the airing cupboard is located. So this post is to ask for any advice on how to make it quieter.
I guess one approach is to enclose it in a sound proof box. Any recommendations for sound deadening material please?
I asked Newteam for advice. They said the pump is wrongly installed - apparently it should be installed at the base of the hot water cylinder, not above it. They say that the noise is caused by air bubbles in the hot water feed. I can partly believe this but can't see how to achieve their recommendation as there is no room down the sides of the cylinder (I guess many airing cupboards must be just wide enough for a cylinder). Do you think this is really the cause of the noise? Any suggestions how to stop the air bubbles without moving the pump please?