Waste into soil stack

[Casterbridge]

I bought one of these to take toilet and sink waste.

http://www.toolstation.com/shop/Roofing & Drainage/Soil & Vent/Branch 110mm 92.5/d250/sd2849/p15397

I guess the smaller holes are for drilling to accommodate 32/40mm waste?

Do I also need one of these to take the 32mm waste after drilling?

http://www.toolstation.com/documents/search/index.html?searchstr=96234&submit=Go

If yes, do you know what size hole to drill?

 

[mfarrow]

Yes.

Yes.

As big as the inside of the boss itself. 48mm or so.

 

[Fluffster]

I would recommend using a solvent weld boss insert as the connection is so close to the wc connection and you do not want any leaks from that do you.

Pete

 

[Casterbridge]

Thanks - where do you get the solvent weld ones?

Also, I will be bringing 40mm (not 32mm as stated) waste into the branch. Effectively this will come to the outside wall about a metre away and connect into the branch. This will obviously mean a 90 bend as the 40mm comes out of the wall. I hvae seen a type of 40mnm 90 degree bend which also has access on a neighours property - I can't seem to see these on Toolstation - can anyone direct me to the thing I mean. (BTW Is it necessary to have access at this bend?)

 

[Hugh Jaleak]

Plumbers merchants should have the solvent boss, not likely the sheds will stock those.

Bear in mind with the waste, if it blocks, can you get a snake or similar along it to clear it? Maybe preferable to fit a rodding eye just in case, wont get a bend with access in waste pipe, fit a T instead of a bend, then a rodding eye in unused socket of the T.