jfb Posted April 1, 2019 Share Posted April 1, 2019 I have a downstairs toilet where the 110mm waste pipe comes up in the corner of the attached plan. I am looking to get an access branch that allows me to take the toilet waste and the kitchen and toilet sink waste as well. I was thinking of getting this : https://www.toolstation.com/access-branch-110mm-9250/p26539 Access placed on top. Toilet waste would go into one side branch and 40mm waste into the other 110mm branch via a 110mm to 40mm reducer. Does that sound sensible? Link to comment Share on other sites More sharing options...
ProDave Posted April 1, 2019 Share Posted April 1, 2019 No you want something like this. https://www.ebay.co.uk/itm/192310256435?ViewItem=&item=192310256435 Only chose ebay as an example for ease of searching., The one you chose would not have a swept bend for one inlet. And you should really continue the stack pipe up a bit to an air admittance valve. Link to comment Share on other sites More sharing options...
Onoff Posted April 1, 2019 Share Posted April 1, 2019 Is he going to want anti siphon traps on the kitchen & wc sinks? Link to comment Share on other sites More sharing options...
jfb Posted April 1, 2019 Author Share Posted April 1, 2019 That makes sense Dave. I thought i wouldn't need an AAV as the longer branch that goes to the upstairs bathroom will vent through the roof (off mains, have STP installed). The two branches join at a y junction about 2 metres from downstairs toilet. I'll have to look into anti syphon traps. Link to comment Share on other sites More sharing options...
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