Connecting my new shower

[ADRIANPBIRD]

Need some advice please. Is a metal flexible tap connector suitable for connecting my electric shower to the mains? Many thanks

 

[ShaunCorbs]

no needs to be full bore eg 15mm copper/plastic

 

[chris watkins]

no needs to be full bore eg 15mm copper/plastic

Why ?

What is the difference between a tap & a shower, Shaun

 

[ADRIANPBIRD]

Thanks for your speedy reply. I'm assuming from your response that the stainless steel flexible hoses have a smaller inner bore than a 15mm pipe therefore this would restrict the flow of water?

 

[ShaunCorbs]

Why ?

What is the difference between a tap & a shower, Shaun

most instructions say that will need no added restriction and also if you use a flexi will be like piping up the shower in 10mm (which most dont allow)

 

[ShaunCorbs]

Thanks for your speedy reply. I'm assuming from your response that the stainless steel flexible hoses have a smaller inner bore than a 15mm pipe therefore this would restrict the flow of water?

correct

 

[REDSAW]

youd be best using push-fit copper fittings like cuprofit than flexi hose wich would be considered a bodge!
but hey-oh, a peice of hose with 2 jubilee clips would work also!!!

 

[chris watkins]

most instructions say that will need no added restriction and also if you use a flexi will be like piping up the shower in 10mm (which most dont allow)

Sorry but am I missing something here? the outlet on an electric shower is smaller than 15mm, the pipework inside the electric shower is a lot smaller than 15mm and the resulting flow rates from an electric shower are considerable less than any other appliance that I know.

So working on the basis of what comes out is all that is required to go in. Why does it have to be 12mm ID pipe?

As it is mains water the flexi would have to be WRAS approved & pressure rated but if the man want to use one I see no reason why not, I personally wouldn't.

 

[ShaunCorbs]

Sorry but am I missing something here? the outlet on an electric shower is smaller than 15mm, the pipework inside the electric shower is a lot smaller than 15mm and the resulting flow rates from an electric shower are considerable less than any other appliance that I know.

So working on the basis of what comes out is all that is required to go in. Why does it have to be 12mm ID pipe?

As it is mains water the flexi would have to be WRAS approved & pressure rated but if the man want to use one I see no reason why not, I personally wouldn't.

Even states in the mis a full bore 15mm Iso valve is required, if you still doubt me

Best to connect it up and then call the manufactur out for a warranty claim and any betting they will say no due to un adequate installation

 

[chris watkins]

I suppose what it is all about is those that understand plumbing & the products used & those that slavishly have to follow the MI,s.

If you can deliver a minimum running pressure of 100kPa (1.0 bar) at a minimum flow rate
of eight litres per minute for the 8.5kW rated model or nine litres per minute for the 9.5kW rated model the shower will work correctly doesn't matter what the delivery system comprises off. (Regulations permitting).

 

[ShaunCorbs]

I suppose what it is all about is those that understand plumbing & the products used & those that slavishly have to follow the MI,s.

If you can deliver a minimum running pressure of 100kPa (1.0 bar) at a minimum flow rate
of eight litres per minute for the 8.5kW rated model or nine litres per minute for the 9.5kW rated model the shower will work correctly doesn't matter what the delivery system comprises off. (Regulations permitting).

Fair enough but your warranty will go out the window and you would have to replace out of your own pocket

And what happens when the flex blows/ starts to leak you have to take a few tiles off to replace it

 

[plumben]

Elec showers require non restricted connection, Full bore 15mm and compression connection to the shower, why because that's what the MI's ask for they know a lot more a bout the product than you or me so I take there word for it

 

[tamz]

Elec showers require non restricted connection, Full bore 15mm and compression connection to the shower, why because that's what the MI's ask for they know a lot more a bout the product than you or me so I take there word for it

Not strictly true. A 9.5kw shower will work perfectly well run off a 10mm pipe. I know cos i fitted a full estate like that (in the days before plastic)

 

[ShaunCorbs]

Not strictly true. A 9.5kw shower will work perfectly well run off a 10mm pipe. I know cos i fitted a full estate like that (in the days before plastic)

Weren't there showers made for that back in the day ? Eg mis said they could be run off a 10mm water supply

 

[Knappers]

I agree with everyone, but would have to be a really good reason to even consider a flexi,
it wont last like a copper tube and is more likely to block or leak.
Would be slightly better if there's 'access' from behind.

 

[Rckape]

I always prefer it when there's access from behind...

 

[rocketmanbkk]

I always prefer it when there's access from behind...

I bet you do!!!