Toilet spray gun

[dilalio]

I've been in the Southern Hemisphere for a few weeks and noticed that most toilets have a little sort of shower-head spray-gun type device next to the bowl

Did you drink the mains water in this part of the world?

 

[Doggit]

Regs aside, shouldn't in a sensible world, a double check valve be sufficient. Is there ever going to be a situation where there contents of the bidet/toilet could backflow.

 

[rules&rulers]

The item needs to be wras approved,all the information is below.
https://www.wras.co.uk/consumers/advice_for_consumers/

Cant be arsed to troll through it thou.

 

[muggles]

Regs aside, shouldn't in a sensible world, a double check valve be sufficient. Is there ever going to be a situation where there contents of the bidet/toilet could backflow.

It's not up to us to say - it's unlikely, but not impossible, and the health risks if that were to happen are not good

 

[gassymark]

Would squashing the pipe behind the soil pipe be backflow protection enough

 

[Doggit]

I agree completely on the health risks, but the water regs always seem to be the utmost worst case scenario that could ever be thought of. First there's the double check valve to get past, then the pipe would have to be empty, and that's assuming the the mains water pump gone out.

It's interesting that this device seems to be aimed at the Muslim community, so I wonder how many of these have actually been installed. If so, are we trying bolt the stable door after the horse (shyte) has bolted.

 

[dilalio]

unless you believe in the 'miasma' theory, then an air-gap/break is the only sure way, I'm domestic dwellings, to prevent the potential transfer of bacteria such as v cholera... and we've had our share of problems with this, in the U.K., in the not to distant past.

 

[Doggit]

Ah, interesting point.

 

[Seb101]

Still no one has posted a link to a regulation. Just two diagrams with no citation.

What's the regulation? That the backflow radius of a flexible hose cannot be in reach of something your arse might touch?

So if I place the hose so that it's spray can reach into the toilet but the 'head' itself cannot actually go into the toilet, then it's ok?

 

[Madrab]

A toilet and its water is classed as Cat5 water, if a douche spray can spray into a toilet then it is within reach of a toilet either that or it's spray head can be contaminated by erroneous spray around the toilet ergo it requires cat 5 protection.

Look up CAT5 protection in the Water regs, it aint difficult.

https://www.wras.co.uk/consumers/resources/glossary/fluid_categories/

 

[EAST61]

https://www.wras.co.uk/downloads/pu...flow_in_the_design_of_domestic_bathrooms.pdf/

 

[rules&rulers]

You really need an approved plumbing contractor for this job,its not diy,sorry to say.
https://www.wras.co.uk/consumers/approved_plumber_scheme/watersafe/

 

[Seb101]

https://www.wras.co.uk/downloads/pu...flow_in_the_design_of_domestic_bathrooms.pdf/

Thanks EAST61 this is actaully really useful. The regulations say: so long as the hose isn't long enough to actually enter the toilet pan, this can be done with no requirement for any backflow protection at all.

 

[roguetrader]

There are several hoops to jump through (did you see what I did here).
It's all well documented but I'm sure the OP knows best.

 

[rules&rulers]

The regulations say: so long as the hose isn't long enough to actually enter the toilet pan, this can be done with no requirement for any backflow protection at all.

Great,bye then.

Crack on...