Might be doing a shower pump for one of SWMBO's aunts in the near future. She is keen on the idea of a shower pump to give a gentle boost in pressure (i.e. she is not after the full body jet skin flaying experience - just a bit more performance than currently available with the 1 to 2 meters of head her current gravity fed shower provides). Also we don't want too much flow rate, since the current storage system only has what looks like a 450x900 cylinder and convected circulation to reheat it.
Any recommendations on model, and a good supplier of these?