I have a slight leak in a drain trap that is a little hard to get at. Is there some product I can put down the drain to stop it or must the trap be replaced?
As far as I know, the only product you can buy to put down a drain will be for unblocking it!
If it is leaking, the only way to fix it is to get in there, strip it down, then repair or replace it. Job done.
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix plumbing.