Outside tap drain

[Fredstudio]

If installing an outside tap with a hose union backplate so no exposed pipework would you still fit a drain off inside? Do many fit drain offs inside as most customers wouldn't be able to open them to drain it down. Thanks.

 

[Bosswhite]

Interior drain off is to stop water freezing in outside tap , plus stopping water in outside tap being contaminated . outside tap should also have a double check valve .

 

[Fredstudio]

Thanks. Just the fact would most customers be OK opening a drain of to stop the tap freezing?

 

[Deleted member 267285]

outside tap should also have a double check valve .

and an isolation valve

 

[Fredstudio]

and an isolation valve

Thanks I know. But do most install an internal drain off too? Just can't see many people being comfortable opening and closing one.

 

[Deleted member 267285]

Thanks I know. But do most install an internal drain off too? Just can't see many people being comfortable opening and closing one.

I’ve been fitted quite a few, whether or not people are comfortable doing it, regs require it.

 

[Madrab]

Depends on where the pipework is coming from.

If the supply rises up inside before heading out the wall then ideally you would have a drain at the lowest point. If it doesn't then opening the tap would drain the pipework.

There is a requirement to drain the pipework to stop any water becoming stagnant/bacteria ridden over the winter when isolated.