I have a Mixer tap on the bath which has connected shower. The pressure is not great. It is fed with a 22mm supply direct from cold storage tank, and 22mm feed from hot water cylinder (in the adjacent bedroom) I was thinking of locating a 1.5bar small shower pump, under the bath. This could then feed the supply to the mixer tap, and because the cold is a direct supply and the hot is tee'd off, the pump would not then be feeding the sink/toilet, merely just the bath mixer.
Does this sound OK?
Does this sound OK?