[andygrif]

In the bathroom, we have one of those pop-up plugholes which is operated by the lever on the back of the taps.

Around the plughole there is obviously the chrome rim that covers up the hole in the sink.

It seems that there was some sealant underneath this rim, which has come loose, which I then pulled out! Now, even when the plug in in the down position, the water leaks away through the gap around the rim.

So I trundle off to B&Q to look at sealants. And pretty much without fail, they all say that they should not be used in places that are "constantly immersed" or in fittings like shower trays.

So what should I use to seal this gap? Any plumbing experts that can offer some advice?

Thanks in advance.

Andy