On Wednesday, 7 October 2020 10:25:38 UTC+1, JohnP wrote:

When it rains I hear an annoying drip drip from a windowcill. IT is made of
a hollow plastic extrusion and the drips really make a loud noise that
passes into the lounge.

I wondered about filling it with expanding foam - but:

would certainly quieten it

Would the foam reach half way (from each end)?

if you use a long enough tube, sure

Would it react badly with the uPVC?

dont think so

Could it distort the uPVC as it expands?

oh, massively. I'd give it 96% odds of being a write-off.

Any ideas?

Yeah. Use anything else. Gravel should do it.


NT