Adding a water tap

May 03, 2018 2 Replies
R

I have a 32mm Alkathene incoming water main, reduced at internal stopcock to a 22mm copper riser.



This is all inside my (attached) garage - so inside the property.



Thinking of adding a 22mm tap on this copper riser ..... 2 fold use ... to allow water in the garage when required. Plus to allow a full flow water feed to be used on a hose (to outside the house) I do have a 15m outside tap .... but thinking of a higher flow.



So it is an 'inside tap' not an external tap.



I would put a Tee on the 22mm rise feed this to a 22mm full flow balofix type isolation valve, then to the 22mm tap.



If it were an external tap then I would fit a double check valve ..... is there any requirement for a check valve on this 'internal' tap.



Obviously you could connect a garden hose to any internal tap - these would not have a check valve - but as this is slightly different installation (not a bath or sink) ... just wondering what water by-laws apply.


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H

rick pretended :

I would suggest that any tap, usually ones outside the main dwelling, where there is a possibility that it might be used with a hose, ought to have a check valve fitted in line with it.

The taps with a threaded outlet, are the more usual type to fit in these type of location, making it easy to connect a hose.

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R

I don't know what the law says, but it makes sense to use a double check valve if there's a possibility that an outside hose will be connected to it.

Is your supply metered and if so, where is the meter? You'll certainly be in potential trouble if you draw water off *prior* to the meter so that it doesn't get measured!

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