Problem fitting new ceramic cartridge

[Stephen Clarke]

Hi,
I had a leaking basin mixer tap. The Methven brand tap was leaking through the top. I was able to source 2 new replacement ceramic cartridges (1 as a spare). Both are identical to the old one. When I put either of the new ones into the tap & put it back together, the water won't turn on. There is only 1 way the cartridge can go in, so that's not the issue. As soon as I turn the tap on there is a hissing noise like the water is being shut off.
I'm trying to establish what I'm doing wrong. Surely both of the new cartridges can't be faulty ??

 

[Deleted member 120897]

Unlikely that both are faulty unless a bad batch. Could you be more specific on the tap model?

 

[Stephen Clarke]

Unlikely that both are faulty unless a bad batch. Could you be more specific on the tap model?

Hi
Thanks for replying i dont have a model number. See photos attached

 

[Deleted member 120897]

Thanks. You have definitely opened any isolation valves/turned the water back on when testing? Have you tried fitting the old one and it works?