Hello!
I'm looking to create a solution to stop potential back siphoning from a shower head if it falls into the bath water in a care home. Unfortunatly it needs to adhere to WRAS fluid cat 5 legislation which means no none return valves or moving parts! Essentially there has to be an air gap somehwere in the system so there is a physical barrier between the feed in and any back siphonage.
What i'm thinking of is a small tank underneath the bath that would take water from the mixer tap under mains pressure, then be drawn out via a small shower pump up out of the shower head. The problem with this of course is there is effectively no head (or only the weight of 3-4 litres of waters.
Does anyone know of a single feed shower pump that needs no head ie- it can draw from a small tank positioned next to it rather than above?
Any help/advice would be greatly appreciated.
Cheers guys
Max
I'm looking to create a solution to stop potential back siphoning from a shower head if it falls into the bath water in a care home. Unfortunatly it needs to adhere to WRAS fluid cat 5 legislation which means no none return valves or moving parts! Essentially there has to be an air gap somehwere in the system so there is a physical barrier between the feed in and any back siphonage.
What i'm thinking of is a small tank underneath the bath that would take water from the mixer tap under mains pressure, then be drawn out via a small shower pump up out of the shower head. The problem with this of course is there is effectively no head (or only the weight of 3-4 litres of waters.
Does anyone know of a single feed shower pump that needs no head ie- it can draw from a small tank positioned next to it rather than above?
Any help/advice would be greatly appreciated.
Cheers guys
Max