Waste water fittings on baths, screw in centre type

[DrWho]

There have been 2 separate occasions when I have had water coming in through my light fitting in my bathroom from the neighbour above, and the reason apparently was because the centre screw in their drain had loosened.

Apparently this type of fitting with the centre screw is not the preferred option when fitting a bath, and perhaps this would be the reason why.

Is there anything that can be done to stop the centre screw from loosening again as I am not convinced that just tightening the screw will do the job in the long term.

The bath I believe was fitted securely underneath, but I am led to believe that if there is movement below then this is what leads to leakage due to the screw loosening.

Is this a common issue with these type of bath drain fittings?

 

[Phill Peck]

When I install waste fittings I use silicon sealant in both parts of the waste

I'm not aware of one leaking yet

I'm also not aware of the screw coming loose being an issue

 

[DrWho]

When I install waste fittings I use silicon sealant in both parts of the waste

I'm not aware of one leaking yet

I'm also not aware of the screw coming loose being an issue

Well this is what he said it was, and he ran their bath and emptied it with me standing there, and no water was leaking.

If you look at this link it shows that when the screw tightens it compresses the washers, so surely this would stop potential leaks, no?

http://www.diydata.com/plumbing/bath_waste/bath_wastes.php

 

[HERTS P&D]

Are you sure it's not his overflow leaking (quite common) or the silicone around the bath edge when someone had a shower.

Or he could have a shower curtain that leaks around the edge.

Andy

 

[DrWho]

Are you sure it's not his overflow leaking (quite common) or the silicone around the bath edge when someone had a shower.

Or he could have a shower curtain that leaks around the edge.

Andy

It was when someone was having a bath that the water escaped, in fact, I'm not even sure if anyone had got into the bath.

Re the overflow, you'd think the plumber would have checked this. I haven't heard from the occupier so I don't know how full they had the bath at the time.