1 inch bathroom mixer tap

[JohnMalcolm]

Hi All,
I hope you are doing well.
I have two copper pipes one 15mm and the hot water is 22mm.
My mixer tap has 2x 25mm (1 inch) female.

How to connect this up?
I cannot find any flexible connectors above 22mm. I also cannot find any reducers from 25 to 22mm.
What can I do?

 

[snowhead]

Is this a modern tap or antique?
It would be unusual for a modern (up to 75yrs old or so) tap to be 1" female, they're normally 3/4" male.
3/4" thread measures approx 1" across the outer diameter.

Does the tap look like this where the brass connections are?

 

[Ben-gee]

Your tap is standard don’t worry, as snowhead says 3/4” tap tails actually measure 1” across the threads! (Don’t ask)

Easiest thing would be a 3/4” to 22mm push fit flexi for the hot and a 3/4” to 15mm push fit flexi for the cold.

John Guest Speedfit versions of these are available everywhere!

 

[RayW]

Your tap is standard don’t worry, as snowhead says 3/4” tap tails actually measure 1” across the threads! (Don’t ask)

Consolidated Brass | CB Ideal Tapware

Manufacturers of brass tapware and accessories for domestic, commercial and scientific use, Australian made to Australian standards. Heritage renovation and custom styling a speciality.

www.cbideal.com.au

 

[JohnMalcolm]

Is this a modern tap or antique?
It would be unusual for a modern (up to 75yrs old or so) tap to be 1" female, they're normally 3/4" male.
3/4" thread measures approx 1" across the outer diameter.

Does the tap look like this where the brass connections are?

View attachment 76932

Yes, I got it wrong it's 1" male.
It's 25mm outside diameter and about 19-20mm inside diameter.

Ok so the correct designation for this one is 3/4".
Thank you everyone!

 

[JohnMalcolm]

Does that mean I need 3/4" or 1" backnuts? 1" is hard to find so I reckon not common not the right one.

 

[snowhead]

3/4" backnuts, were they not included with the taps?

 

[JohnMalcolm]

3/4" backnuts, were they not included with the taps?

I think they were included but I misplaced them :/
Thank you

 

[Last Plumber]

I think they were included but I misplaced them :/
Thank you

Get brass ones from Plumbers merchant. They'll be better quality than the usual plastic ones that are sent with the taps.