Quick fix -pump up the water!!

[theSouth]

In the future I plan to have an unvented cylinder installed, but in the meantime I'm wondering if a pump in loft to pressurise (more) hot and cold water to bathrooms (I'm lucky enough to have 2 bathrooms and two ensuites, though unlucky enough to have had to build and fit them out over last ten years.....)

Watching "James" (plumberparts) adding a single impeller to add pressure to hot I wondered why only hot? Why not (as a temp measure) add a dual system pump for hot and cold?

Other than cost, effort, small 'lag' and some issues I've heard about with toilets (I'll keep that on gravity probably) are there other issues to consider?

Do a lot of people ask for these to be fitted if they can't avoid unvented system?

 

[Dan Robinson]

That guy is a total penis.

Any way, you can't pump into a hot water cylinder - open vented anyway.

 

[theSouth]

it came up in search results

I'd be taking feed from top of cylinder and (separate cold feed from one that feeds hwc) cold feed from cold water header.

Same as shower pump. I'd heard there are pumps that are suitable for 'continuous' running (as opposed to shower pumps)

It's just an idea at the moment. Hot water is 'OK' but could be better. Though kitchen tap is crap. I've considered heater there etc and other options.

Dual pump would be easy to fit as I'm changing system now anyway.

 

[Dan Robinson]

Hot supply should come from a flange on the cylinder, or modified pipe work as close as possible. Do not tee off the vent pipe.

 

[theSouth]

I installed a Surrey flange years ago. Will do same on new cylinder.