K
kozel
Hi,
I am having my bathroom refurbished and had some builders in for a quotes. As part of the refurb, we want to install a mixer shower that requires at least 0.5bar. We have a standard gravity fed system (water tank in a loft) with indirect vented HW cylinder (in the airing cupboard in master bedroom). I assume it gives max. 0.25bar (bathroom directly above the loft).
One builder suggested feeding HW cylinder from mains rather than water tank. However intrigued I am by this option, it also set some alarm bells in my head (how do you stop cylinder from overfilling, what is the point of the tank after this or damage to the piping which may not be designed for this pressure). I have looked at the internet and basically found only 2 threads about this (bad sign?). One was basically saying something like 'DO NOT do it unless you want to wake up in your neighbor's bed or not at all...' and one saying that 'it is quite common to do this in mainland europe' (even found a schematics for it - it is done by installing pressure reducing valve, strainer and non-return valve).
Therefore my question is, is it doable/safe/viable in the first place?
Obvious alternative would be to install water pump, but we really could do without the noise as well as extra mechanical part that could potentially go wrong. Unless someone knows about some ultra quite pump...
Many thanks in advance for you comments.
I am having my bathroom refurbished and had some builders in for a quotes. As part of the refurb, we want to install a mixer shower that requires at least 0.5bar. We have a standard gravity fed system (water tank in a loft) with indirect vented HW cylinder (in the airing cupboard in master bedroom). I assume it gives max. 0.25bar (bathroom directly above the loft).
One builder suggested feeding HW cylinder from mains rather than water tank. However intrigued I am by this option, it also set some alarm bells in my head (how do you stop cylinder from overfilling, what is the point of the tank after this or damage to the piping which may not be designed for this pressure). I have looked at the internet and basically found only 2 threads about this (bad sign?). One was basically saying something like 'DO NOT do it unless you want to wake up in your neighbor's bed or not at all...' and one saying that 'it is quite common to do this in mainland europe' (even found a schematics for it - it is done by installing pressure reducing valve, strainer and non-return valve).
Therefore my question is, is it doable/safe/viable in the first place?
Obvious alternative would be to install water pump, but we really could do without the noise as well as extra mechanical part that could potentially go wrong. Unless someone knows about some ultra quite pump...
Many thanks in advance for you comments.
you, the wife, kids + dog will be safe. may be a bit more expensive but no where near as many probs as letting the builder do it.
