It depends on the configuration of the pipe. It must be a minimum of 3" pipe and the configuration of how it is hooked up must allow for the toilet to be vented and must not disrupt the venting of other fixtures. Call a plumber.
for stench
The word stench is a noun. A stench is a foul smell.
"That is a HORRIBLE stench!" "The putrid shench i coming from the garbage can." "He ALWAYS has a bad stench after lax practice."
is a stench pipe nessary
A pestilential stench is a poisonous odor or smell.
Pungent Stench ended in 2007.
Pungent Stench was created in 1988.
You can say...Is that stench coming from the garbage can?
It is not possible for humans to do a skunk stench.
The Stench of Redemption was created on 2006-08-22.
Mr. Stench
you type in stench google mum