Soil pipe query.

[Olliellis]

Hi all. Just a quicky.
I have a toilet up stairs the pipe comes straight out the wall.
Question 1. Can i have a turn to connect to the stack?
At the base of the stack i have a toilet that needs to join to it from the basement.
Question 2. It will join into it and then jave a bend directly below to go to a manhole. Is this ok?
Thanks ollie

 

[PrenticeBoyofDerry]

1) Yes
2) What vertical distance is there between toilet pan spigot and the manhole ?

 

[Olliellis]

Fall from toilet pan to soil stack will be 1 in 23 or 40. No manhole yet. Septic tank to be installed.
Can i go from base of stack 90 bend straight into manhole

 

[Hugh Jaleak]

Need a long radius bend at the bottom of the stack, provided you can get that in then chamber should be ok after that, but flow will ideally need to go straight into the channel, using one of the laterals could result in fouling of the opposite benching.

The lowest branch connection must be a minimum of 450mm above the invert of the drain from the stack.

 

[CJRatch]

As mentioned a long radius bend is needed at the bottom of the stack. Try to keep 90 bends to a minimum if any.

Another thing to consider is having the manhole / inspection chamber so close to the bottom of the stack you'll find when all the nasty stuff flies down your soil stack it'll explode right into your manhole / inspection chamber. Try and incorporate a run of pipework maybe a few meters to allow everything to settle before it enters the chamber, I know its not possible sometimes but try and consider it if you can.

EDIT: Ha, just realized thats what you were implying Hugh in a more technical manor. I couldn't grasp what you meant at first. Now I understand. So long as the original posters knows one way or another, eh?