Hi,
I have done quite a lot of searching but couldn't find an answer to my specific questions.
I am about to refit my bathroom and en-suite, including replacing one shower and fitting a shower over the bath. I have a gravity fed system with what to me looks like a fairly large tank mounted raised up in the loft and HWC in the airing cupboard. The airing cupboard backs onto both shower/bath locations. I am undecided on whether to go for one or two pumps, and single or twin.
I know I can fit two twin impeller pumps, and also split the hot/cold outputs from a single twin impeller pump into both mixers. I guess I have to weigh up the pros and cons of each option (simultaneous use, tank size, pump failure).
But since all the pipework is exposed in the airing cupboard, the Stuart Turner technical info seems to suggest I can use a single impeller pump to propel the mixed output from a mixer. Is this correct, and are there any gotchas (would an Essex flange still do its job for example, and is the pressure effectively halved)? Assuming this would work well, what about using a twin impeller pump to propel both mixers' blended outputs - do the impellers work independently? This would seem to be an elegant solution - one pump, but no drop in pressure when the second shower is turned on.
Thanks in advance!
I have done quite a lot of searching but couldn't find an answer to my specific questions.
I am about to refit my bathroom and en-suite, including replacing one shower and fitting a shower over the bath. I have a gravity fed system with what to me looks like a fairly large tank mounted raised up in the loft and HWC in the airing cupboard. The airing cupboard backs onto both shower/bath locations. I am undecided on whether to go for one or two pumps, and single or twin.
I know I can fit two twin impeller pumps, and also split the hot/cold outputs from a single twin impeller pump into both mixers. I guess I have to weigh up the pros and cons of each option (simultaneous use, tank size, pump failure).
But since all the pipework is exposed in the airing cupboard, the Stuart Turner technical info seems to suggest I can use a single impeller pump to propel the mixed output from a mixer. Is this correct, and are there any gotchas (would an Essex flange still do its job for example, and is the pressure effectively halved)? Assuming this would work well, what about using a twin impeller pump to propel both mixers' blended outputs - do the impellers work independently? This would seem to be an elegant solution - one pump, but no drop in pressure when the second shower is turned on.
Thanks in advance!