Removing water pump

Turner

We have a two story house with two cold water tanks in the attic.

We have a large grundfos pump which operates on the cold water system only. As a result every toilet flush and bathroom tap, the pump comes on and can be heard all over the house.

The hot water system is not pumped and is powered lets say by the mains feeding into a sealed electric hot water cylinder. So when having a shower depending on the water temperature sometimes very little cold water is required, resulting in the pump short cycling.

Am thinking of removing the pump altogether. Surely with the tanks that high up in the attic there is enough pressure there to supply water to the cold water taps for washing hands and filling the toilets.

The noise of the pump is a pain in the ass. And the pressure is so great with the pump that water diffusers are fitted to the bathroom taps anyway.

The only benefit I see of the pump is if we wanted to fill the bath really quickly with cold water, which we never do.

Any suggestions?

whizbang

You need to check the size of the piping running to the bath and showers. If its 3/4" then lose the pump asap.

But your tap and/or shower fittings maybe high pressure types only; meaning they wont work at all without pump. Difficult to know.
Fit a pump bypass as the first thing, and test it. Always a good idea to have one anyway.

I would love to see a system that only runs pump on very high flow only, gravity feed the rest.. It should be possible..

New houses built across the road from me are 3 storey, with attic on top, and up there fitted an integrated pumped tank. Mad.