Can somebody please tell me how I might get rid of the nasty bad egg smell that sometimes wafts up from the sink waste?
I have checked the u-bend for blockages and the hose that goes to the washing machine. Both were clear but I replaced it anyway and the problem still persists.
I'm afraid I know virtually nothing about plumbing and would be grateful for any help.
If you have smells coming from the sink plughole, the water seal is being broken. This is often caused by the draining water sucking the water from the trap instead of leaving a small quantity in as a seal.
[quote="plumbbob"]If you have smells coming from the sink plughole, the water seal is being broken. This is often caused by the draining water sucking the water from the trap instead of leaving a small quantity in as a seal.
Agree - you definately have syphonage. You can't tee a WM directly into an anti syphon bottle trap but you can get a WM tee that fixes to the bottom of the sink with a spigot onto which your WM hose can be connected. The bottle trap fixes to that but you'll need quite of space to accommodate both. The alternative is to break into the waste pipe from the sink and fit a slightly different design tee which also allows you to connect the WM hose.
[quote="htg engineer"]You will lose the seal when downstairs uses their kitchen sink, an anti siphon trap will cure this.
htg[/quote]
Not sure if you got my last post. What I would like to know is can I still fit the washing machine waste to the anti syphon trap or does this have to be plumbed in elsewhere?
Whether this particular type of trap can be fitted depends on how the pipework is arranged. Certainly somehow a anti vac device can be fitted, and they also are available as an inline version too. You only need to fit one somewhere in the pipework preferably at the highest point.
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