I bought an ex display vanity unit/basin/taps/popup waste at the builders merchant and it didn't have a washer for under the basin. So i bought from them a plastic washer, fitted the whole thing and it leaked. Went on t'internet and numerous people say discard the washers and use silicone. The lip of the screw in part of the waste is very narrow and the basin hole is quite big so i tried using silicone and the plastic washer. That also didn't work. (bearing in mind the whole thing is assembeled so i'm working from underneath now.)
Then i thought - I keep reading about a rubber washer but what I'm using is plastic.
Question1. should it be a rubber washer and would that be likely to work better than the plastic one.
Question2. is it best to use washer and silicone or washer alone or silicone alone
Question3. I'm wary of not using a washer as i don't want to crack the sink glaze - is that an irrational fear
Question4. If I just use silicon and no washer how much should i use and how tight should I tighten the bottom part
Many thanks for help
Then i thought - I keep reading about a rubber washer but what I'm using is plastic.
Question1. should it be a rubber washer and would that be likely to work better than the plastic one.
Question2. is it best to use washer and silicone or washer alone or silicone alone
Question3. I'm wary of not using a washer as i don't want to crack the sink glaze - is that an irrational fear
Question4. If I just use silicon and no washer how much should i use and how tight should I tighten the bottom part
Many thanks for help