Some advice on an outside tap

[go3asy]

Just looking for some advice as I'm seeing come conflicting information on best practice ect. Had someone for an outside tap to a new build at the weekend, it's a timber frame with brick outer and cavity which blew out some render when drilling through for the pipe which the builders who are still on site have agreed to fill.

Before or they do though I'm considering having the figment changed to better safeguard it. There is an isolation valve inside but not a double check valve, am I ok to PPP a new tap on with the check valve included? Since it's an old tap been fitted anyway.

other issue is before they fill the render I wasn't to have a tidy fit and don't want the compression fitting covered in the event it seeps or starts leaking into the cavity. Solution to his would be to have a plumber replace the elbow with a solder joint and I am wondering if it should be sleeved with a 22mm plastic pipe to again further protect the cavity should there be any leaks. I know the chances of problems are small but would rather it was done properly and tidy. Have attached a photo, excuse the silicon I have pumped into the hole until the builders sort the render as the hole was quite big!

photo: https://www.dropbox.com/s/qjcg87vq56635bf/photo 15-03-2015 09 42 34.jpg?dl=0

 

[go3asy]

As well, if changing that joint does the pipe need to be changed through the wall to make a solder elbow joint, its chrome plated not sure if that can still be soldered? Or is it safe enough to keep the compression fitting and have them try keep a gap round it and not end up covering it in render.

 

[stevetheplumber]

looks like that tap already has a nrv in it is there a small scrtew in the bottom?

 

[go3asy]

Yeah there is

 

[plumben]

Yeah there is

It dosnt matter if the tap has a non return valve in it or not you still need a double check on the inside

 

[Gray0689]

Just looking for some advice as I'm seeing come conflicting information on best practice ect. Had someone for an outside tap to a new build at the weekend, it's a timber frame with brick outer and cavity which blew out some render when drilling through for the pipe which the builders who are still on site have agreed to fill.

Before or they do though I'm considering having the figment changed to better safeguard it. There is an isolation valve inside but not a double check valve, am I ok to PPP a new tap on with the check valve included? Since it's an old tap been fitted anyway.

other issue is before they fill the render I wasn't to have a tidy fit and don't want the compression fitting covered in the event it seeps or starts leaking into the cavity. Solution to his would be to have a plumber replace the elbow with a solder joint and I am wondering if it should be sleeved with a 22mm plastic pipe to again further protect the cavity should there be any leaks. I know the chances of problems are small but would rather it was done properly and tidy. Have attached a photo, excuse the silicon I have pumped into the hole until the builders sort the render as the hole was quite big!

photo: https://www.dropbox.com/s/qjcg87vq56635bf/photo 15-03-2015 09 42 34.jpg?dl=0

What kind of tool fitted that looks like a 1970s tap installation drill in not out

 

[Billy Bob Bob]

oh dear god,what a mess,get one of these fitted

 

[thompsonbrown]

as above, dont forget to fit check and isolation valve inside