toilet waste pipe drop

[tireetim]

I am fitting a new toilet and pre installed the waste pipe through a 50cm stone wall. I set a small drop off from inside to outside and then sealed the gap around the pipe with cement. Unfortunately it seems to have dropped on the inside before it set and is pretty much level now (if not a very tiny rise) for about 50cm. Will this be a problem as it's going to be a nightmare to cut it all out and start again (walls inside tiled etc.)
Also, does anyone know the correct drop for this pipe?
Thanks.

 

[Nige F]

No worries something like 2.5 degrees is often quoted.

 

[tireetim]

Thanks Nige. So you don't think water will flow back from the pipe into the toilet or cause problems with the flushing?

 

[Nige F]

I'd be surprised if there's any bother that close to the pan

 

[Terry lambert]

You would normally install the section through the wall straight, the flush will take care of it

 

[tireetim]

OK Thanks Terrydoh and Nige. Will install it as is.
Cheers.