Outside tap dumb plumbing question

[Grumps]

I want to move our outside tap, and thought it about time I got a new one (with a check valve). So, do I screw this

this ? (then connect the 15mm pipe to my existing internal supply)

And if so, how do you make sure that the tap makes a water-tight seal pointing in the direction that you want?

[shaun]

Yes.

Wrap PTFE round the threads. Keep turning until it starts to get tight. Turn some more.

[Christian McArdle]

You stop tightening when it points in the right direction. You pack the threads with your favourite sealing compound. Boss white and hemp for the traditionalists. PTFE and Fernox LS-X for the modern types, or if drinking water is involved.

Christian.

[Steven Campbell]

It can still end up pointing upwards though. I fitted one of these kits for my parents and regardless of what I done the tap always ended up pointing upwards!!!

[Chris Bacon]

Much neater is the first item on this page:

your tap - assemble the tap/wallplate, drill through wall, fix plate to wall, connect to supply.

[Richard Conway]

You coud potentially use one of these instead:

you could tighten tap up in threads before fixing so you could make sure it was upright.

Other than that, do what Christian says, as it works.

[Richard Conway]

Arrrgghh, you beat me to it! (mine is cheaper though - so I win!)

[Grumps]

That makes sense.

Thanks to all.

[mungoh]

That's what fibre washer are for, I think. You fit the tap and then remove it and add a suitable (!) quantity of fibre washers so it sits vertical. It takes a few tries to get right.

Mungo