Fitting Isolating service valve to shower inflow pipe

[Catherine]

Hi, Can you help me with Water Regs re isolating service valve -I'm putting in a new Triton Enrich Shower - supply pipe is plastic behind tiles etc. The supply pipe does not have an isolating service valve fitted to it (as recommended that it should have by the manufacturer to comply with current water regs). Triton also recommend that a compression fitting be used to connect the supply to the shower inlet pipe - Please could you tell me:

Do I need to fit an isolating service valve ? and if so - can I use a compression elbow with an isolating valve that I have found online that has compression fittings at both ends - one end to connect to the service pipe and the other end directly to the shower inlet pipe - ie no extra supply pipe between this (isolating) elbow fitting and the shower inlet pipe? Would this comply with Water Regs?

Regards
Catherine

 

[Simon F]

ISOLATING SERVICE VALVE 15MM ELBOW ANGLED SLOTTED | eBay
something like in the link, quite a useful fitting.
if you have isolated it then you have done as specified,
will you get access to the screw slot on the valve when fitted?

 

[Catherine]

Hi Simon, Thanks for your reply, this is the fitting I was looking at online and yes I will be able to get access if I remove the front cover assembly from the shower - is this acceptable?

 

[nysk2008]

as long as you can isolate the cold and everything else is as per the manufacturers instructions, I dont see anything wrong with what you have suggested and what simon has illustrated

 

[AWheating]

yes it should be fine unless you have poor cold water flow as it may cause some ristriction.

whos requested you fit an isolator? unless its going to effect warrantee or you have to change the shower id leave it.

 

[Jimbober]

Hi,

I have exactly the same issue with the same shower. I wondered if you could tell me if using an elbow compression isolation valve worked out ok?

Thanks,
James

 

[Aquazone]

If you are talking about a mains fed electric shower, then check manufacturers instructions as some give a special olive to use. is the stopcock not isolation enough?

 

[Jimbober]

If you are talking about a mains fed electric shower, then check manufacturers instructions as some give a special olive to use. is the stopcock not isolation enough?

There's no special olive. I was just asking the OP if they encountered any problems with their proposed solution. I don't see any reason why there should be as the shower model requires as per instructions a compression fitting between the supply pipe and the plastic inlet pipe on the shower. However, one concern is that an elbow isolation compression valve might restrict flow even when fully open. Why isolation valve? Turning the stopcock off means turning the entire water supply to the house off, so an isolation valve at the shower would be more convenient for any future maintenance or a leak from the shower. What's more, all new installations now require an isolation valve.

 

[stevetheplumber]

the stop cok is to allow the manufacturers to carry out any warranty work easily and doesnt have to be within the casing any where on the feed will surfice