What mini cistern tap for 10mm valves?

Jane111

Can anyone help with suggesting a mini cistern tap that uses a 10mm tap valve?

I was able to fix a leak on one of my under vanity cistern taps by replacing the tap valves and o ring but can’t take the nut off for the other one so I am thinking about replacing the whole tap. I’ve tried wd40 and a hair dryer.

The existing fittings looks very similar to the brass head 15mm taps but unsure if the connections are the same given the old one uses a 10mm tap valve. I’d love to change to a more standard sizing if I’m able.

https://www.bunnings.com.au/brasshards-mini-cistern-tap-15mm-chrome-lead-free_p0571971

Any suggestions or tips would be appreciated.

MitchellMc

Welcome to the Bunnings Workshop community @Jane111. It's splendid to have you join us and many thanks for your question on tap valves.

Please note that plumbing work needs to be completed by a licensed professional for safety and compliance.

In your case, what you’re describing is actually quite common with mini cistern taps. Most mini cistern cocks use a standard 15mm (1/2" BSP) connection to the wall, but internally they often run a 10mm jumper valve, which is why your replacement valve worked. This can make it confusing, because the valve size and the connection size are two different things.

If you’re replacing the whole tap, you generally don’t need to match the 10mm valve specifically. The https://www.bunnings.com.au/brasshards-mini-cistern-tap-15mm-chrome-lead-free_p0571971 should be a direct replacement.

Please let me know if you have any questions.

Mitchell