Tap adaptor for sink?

[Ben ten ten]

Hi I need to replace a tap adaptor on to a kitchen sink. It is a old monoblock tap with only the threads under the sink. Do basin tap adaptor a fit on them ok? I was trying a flexible basin tap adaptor on it, but I could not seem to get it on the threads. I thought the threads would of been half inch like a basin, what could be going wrong? It is definitely not 3/4 threads. Any help would be great. Thanks

 

[Madrab]

If you are talking about a monobloc mixer and you have 2 threaded holes that you are trying to screw the flexi pipe into where the hot and cold tails screw into? It could be either an M10 or M12 end (10mm or 12mm).

 

[Ben ten ten]

No, it is a old monoblock tap mixer and has two threads like a basin tap underneath the sink. I would of through the they would be 1/2 inch, and that is what they look like, but the 15mm flexible adaptor seems just a little too small. Should the threads be 1/2 like a basin? Or could they be a odd size? It is plastic threads.

 

[Ben ten ten]

I hope somebody can please answer this.

 

[Madrab]

Oh I see, it's just a deck mixer tap you're talking about, a monobloc is something different. If it's for a sink it should take a 1/2" BSP tap connector, if it's for a bath it'll be a 3/4" tap connector.
Plastic threads tho....that's unusual... usually brass. Threads may be chewed then if they won't fit.

 

[Dan Robinson]

Oh I see

I'm glad someone does

 

[Ben ten ten]

Yes deck mixer on a sink. I would of thought they would be brass too. Is there anything I can do to get the tap adaptor on to chewed plastic? Any tricks, or advice?

 

[Madrab]

Only thing you can really do is have it off the sink and then try and fit the connector onto it when it's off. Run the nut up and down a few times to re shape the thread. If that doesn't work then it's a new tap.

 

[Ben ten ten]

Good. Thank you. You have helped me a lot.