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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Plumbing Questions >> Is a waste pipe trap always needed? https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1383484333 Message started by londonman on Nov 3^rd, 2013, 1:12pm

Title: Is a waste pipe trap always needed?
Post by londonman on Nov 3^rd, 2013, 1:12pm

In the process of redoing our first floor en-suite. The waste pipe flows away into an open gulley at ground floor level. So open to the air. Is it necessary to fit a u-bend or trap?

I can't see why it should be. No smells. Ok...maybe a little bit of wind but, hey, fresh air in the bog after I've been there is no bad thing :-[ Rats?

Title: Re: Is a waste pipe trap always needed?
Post by thescruff on Nov 3^rd, 2013, 3:47pm

Mice, wasps, bees, spiders, snakes, slugs, flies and a whole host of creepy crawlies

Title: Re: Is a waste pipe trap always needed?
Post by londonman on Nov 5^th, 2013, 7:51am

OK....trap it is ! :)