check valves on shower hose

[sijaysee]

hi
Can someone explain why a double check valve is not acceptable for protection against cat 5 fluid risk? Example in question is a shower wand hose which can fall into bath so cat 3 but its also next to a bidet.

 

[Charnwood]

Cat 5 requires an air gap. A pipe interrupter is acceptable for cat 5:

http://www.arrowvalves.co.uk/productpages/dc257.html

 

[sijaysee]

are you sure that this is acceptable for a shower mixer?

 

[Charnwood]

Why do you think it's not?

Is your mixer fed from the mains, both hot and cold (combi boiler)?

I think if the shower hose is properly restrained, thereby shortening its potential reach so it can't reach a cat 5 fitment (bog/bidet/urinal) it is treated as cat 3.

 

[sijaysee]

Thats the thing, its not got a restraining clip and the level at which the customer wants it means that it could dangle into the bath. Also there is a bidet alongside the bath which the head could be dropped into. I could put check valves on to satisfy cat 3 but not sure about the bidet? Maybe a shower screen would solve it but i don't know that he wants one.

 

[seco services]

Thats the thing, its not got a restraining clip

Then just fit one.

 

[sijaysee]

yea i could do but the customer doesn't really want one because it defeats the object of being able to be in the bath and wash their hair etc.

 

[seco services]

Long as you fit it to regs when you finish the job then it's up to them if they remove it.

Same on electric showers i always use them but 9/10 times the hose has been removed from it when i have returned at a later date.

 

[sijaysee]

Well i have explained this to them so i guess its up to them what they do after i have finished. At least they know the risks so they can make a decision based on that.

 

[Charnwood]

check valves on to satisfy cat 3 but not sure about the bidet?

Bidet, cat 5, although why washing your feet turns the water into cat 5 I have no idea.

Anglian water suggest turning the bath through 180 degrees, but you can't use an upside-down bath.

 

[Bosswhite]

yea i could do but the customer doesn't really want one because it defeats the object of being able to be in the bath and wash their hair etc.

You are being paid to do a job as a professional its your responsibility to ensure it meets standards, fit the hose in the clip,
If the customer wants to take the clip off thats up to them.

 

[sijaysee]

yea ok mum

 

[neiltheplumber]

yea ok mum