"Count de Monet" wrote in message
...
This is not to increase the flow to a shower, I can't stand for long due
to a disability, I need to up the flow of the upstairs hot water so the
bath fills without a long wait so a single impeller pump in the 22mm hot
flow is all I need. I was hoping this was easier than a: taking out a
perfectly good HW cylinder to replace with a mains pressure one or b:
raising the cold tank in the loft. The pump solution seems, for me the
easier DIY solution. The noise of the pump will only be heard when running
and I can live with that.

Has anyone installed a single impeller pump and which manufacturer was
preferred?

As I said before, Stuart Turner are the Rolls Royce. They have a clever
impeller (regenerative) which makes them quiet and powerful, and they are
brass and seem to last forever (and you can get spares if they die). I was
lucky enough to pick up a new one on eBay for about half list price.

BES lists a Grundfoss single impeller regenerative for only £112, but it is
plastic rather than brass. I was getting about 5 years out of cheap power
shower pumps before I moved to ST. BES also stocks several types of shower
pump flange.

19507 SSR-1.5 C (1.5 bar outlet) regenerative mains shower pump