Waste pipe for mashing machine

[pnburdon]

Hi,

I am in the process of converting part of the back of my garage into a utility room and this involves plumbing in a wahing machine. I have the water supply sorted and planned to run the waste into a standpipe which joings the waste from the utility room sink (via 40mm swept tee). the plan was for the 40 mm waste pipe to then go through the outer wall and run down the side of the house and break into the 1000mm soil pipe that runs down the back of the house See pic

Untitled

• pnburdon
• 30 Nov 2009
• 1

I thought this would be no bother - but a glance at some related post mention building regs and it looks like you arent supposed to have branches longer than 3m and mine is a bit over 4mm? It wasnt clear if this only applied indoors as there was a lot of talk about venting ect.

Can anyone advise if my plan is ok or not or suggest a way around this?

Thanks

 

[Bahco]

Change to 50 mm waste or fit an AAV.

 

[pnburdon]

Where would the aav go? outside?

 

[Bahco]

Where would the aav go? outside?

No, IIRC it has to be within 150 mm of appliance.

TBH , 1 extra metre will not cause you any problems and I would go with 40 mm if you have already bought it.

 

[pnburdon]

That is my thinkning.

Cheers

 

[Richard C]

Please don't double post;
//www.diynot.com/forums/viewtopic.php?p=1425774#1425774
it breaks forum rules, is not necessary & leads to confusion.

 

[kevplumb]

http://www.studor.net/products/mini-vent_UK.asp

 

[pnburdon]

Apologies- I have to admit I have not read all of therules and the thing that I find confusing is the cross over of topics. I managed to get good but different answers from both posts.

I hope no one was hurt or offended by my actions and I promise never to do it again!

 

[Richard C]

No worries but how are they different as far as I can see both threads give the same advice.