My shower is a shower of shit.
The pressure / flow is not high enough to maintain a working temperature so it keeps tripping out when you want to make it colder. Nearly every shower i spend half the time messing around with the temp control like someone trying to crack a safe, attempting to balance it at the point just before the trip kicks in where it's not scalding hot. And it seems like if anyone in the street opens a tap it's game over.
At the moment it's an electric shower fed directly from the mains CWS. There is a combi boiler but I serisuly doubt it's up to delivering a constant hot water supply since that is also fed from the same mains.
The pipework up to the property is all new, the stuff into the house and up to the first floor is Victoriana!
I don't think it would be cost effective to replace the mains on my side. I'm now looking at getting a cold water header tank in the loft (possibly raised right up on a platform- I reckon I could aceive a few metres of head if I mount it in the middle of the loft) and pumping down, or buying one of those all in one showers that pumps and running it directly off the mains with a backflow check and an isolation valve.
I've no idea which pump might be appropriate to feed a single shower (pumping either downhill from the loft or uphill from the bathroom mains, not decided yet). Would 2.5-3 metres of head (if achievable) be useful?