Toilet pan soil fall

[bmouthboyo]

Hi guys,

I am core drill out from my bathroom on the ground floor where the soil pipe will go about a meter to the drain outside.

Doni need to try and factor in a fall when core drilling out or can it go pretty much straight and fall once outside?

 

[cross thread]

Fall required

 

[bmouthboyo]

Fall required

Doesn't that then mess with the elbow on the outside wall?

I guess if I go with my 127mm core bit centred on the spigot it should achieve a drop without having to angle the coring?

 

[oldbutnotdead]

Depends how you've designed it. If it's coming out the wall and straight down then (a) where's your vent pipe (b) you'd use a 92.5° elbow.
Pushfit waste is annoying- the collar of the elbow/whatever ends up in the wall unless you use chunky (2") standoffs on the pipe clips.
EDIT fall from loo between 1:40 and 1:80 iirc. With modern placcie pipe shallower fall is fine.