......other than mounting the hot water tank on a tower above the house. Thought I'd get that in before someone else did.

Ya just made it Spongebob!

Hell....you got to be quick round here!!

Spongebob -

We don't know enough to say if it would or wouldn't.

My guess is that the problem is his bath tap. Maybe 2400mm below the cistern's water level. Increasing the height 1200mm would increase the pressure at his bath tap by 50%.

Of course, it may be a downstaris tap; he may have a bungalow; he may have enough roof space to gain more than 1200mm.

Sister-in-laws house. She has a bungalow. She's looking to refurb both her bathrooms and is having a devil of a time with plumbers either not turning up or getting back to her. That aside most of the taps she's looking at require a minimum of 1.0 bar. Not sure what her existing pressure is but the hot barely trickles out of her taps. I said I'd make some enquiries. However if she'd listened to me in the first place and installed a combi we wouldn't be having this discussion.

For 1.0 bar you need a head of 10 meters.

You won't get that for a gravity system in a bungalow.

Interested to know why you would need a single imp. pump on hot and cold instead of 1 twin pump?

Interesting point,

Stuart turner dont make a seperate pump for whole house situations, a lot of other brands eg. salamander do make 2 types, in the past I contacted stuart turner about swapping a salamander shower pump (which was pumping whole house) to a S.T twin and they said this was O.K to use.

I suppose they're not going to advertise the fact that the twin pumps aren't really designed for complete pumping.

I'll keep it in mind not to use stuart turner twins for fully pumped supplies.

Thanks

Single impeller pumps.....electrics and flow switches I imagine. That's me helping her down the pan (no pun intended). Like a typical women she's doing everything a**e about face. The heating and hot water system is ancient and in my opinion should have been one of the first jobs to be done whether with a combi installation or something else. However she's just spent a vast sum of money having fancy flooring laid throughout the house and now she's on about getting the bathrooms done. I know that in the end she'll do what she wants, but she's family and on her own with 2 kids and I get it in the neck if I don't chip in.