Non return valve outdoor hose

[johnny2007]

Hi everyone, the latest freeze has knackered my hozelock in line non return valve attached to the outside tap and to which then the garden hose is attached.
Now, if I buy another hose with one of those systems where water can only go one way, can I do without the non return valve?
So to be clear, this is what is broken
https://www.amazon.co.uk/Hozelock-N...32&hvtargid=pla-422154537831&psc=1&th=1&psc=1

Can i replace it with a new hose with one way system in which water can only flow one way?

 

[Hugh Jaleak]

Should be a Double Check Valve fitted in the supply pipework to the tap if it's been fitted in recent years. Provided this is the case it meets regulations and you dont need to do anything else.

 

[Madrab]

Now, if I buy another hose with one of those systems where water can only go one way, can I do without the non return valve?

Nope, doesn't seem to have WRAS accreditation, hence why it's called a non return valve. If it was approved it would be called a double check valve .... if you see what I mean.

 

[Gasguru]

The water regulations require a double check valve to be fitted inside the property and that's sufficient.
Often however these are missing and due to poor compliance you might find the outside tap contains check valves.
Of course these freeze in the winter and fail (and frequently stick closed).
The hozelock valve is just adding to the problems and should be uneccessary if the plumbings up to scratch.

 

[johnny2007]

Thanks guys.
The pipework doesn't have a double check valve as it was here when we moved in, so I don't know how old it is.
Is there a solution to avoid touching the pipework?
I say that because it's all welded copper and a tight fit with no play, so it wouldn't be just a matter of cutting a pipe and attach a double check valve.
Anything that can be attached to the outside tap like the one that was there?
Or another tap with integrated double check valve? (Don't even know if they exist)
Thanks

 

[TimboTwo]

Here you are:

https://www.screwfix.com/p/outside-tap-with-double-check-valve-15mm-x/37241

 

[muggles]

https://www.cityplumbing.co.uk/Bras...With-Double-Check-Valve/p/799299?uiel=Desktop

City Plumbing's outside taps are the only ones I've ever been about to find with an integrated double check valve and WRAS approval for use on a water main

 

[johnny2007]

Looks like the same tap from screwfix posted by Timbo Two.
That would save me a lot of aggravation: I can pick it up today and fit it in a few minutes.
And it's cheaper than what it was there before.
Last question: is the Screwfix tap any good or do I need to order the one from City plumbing?

 

[muggles]

Screwfix one isn't WRAS approved so shouldn't be connected to a water main without additional backflow protection. City Plumbing one is WRAS approved so is fine on its own

 

[MeldrewsMate]

To avoid a repeat buy one that can be removed in the winter.
If you can, isolate the outside tap before winter and either leave it on or remove it from the exposed pipework.
A large lump of celotex (scrounged from just about any building site's skip) can be used to fabricate a winter insulation jacket for whatever is exposed.

 

[johnny2007]

I have a winter jacket for the tap, but not for the hose and its attachments.
Got to order that tap and replace.
Easy enough, thankfully I don't have to mess about with pipes.