toilet outlet and the height of the soil pipe, with the toilet being lower.
create a good seal on the bog. The flush is quite efficient, giving quite a blast of water to clear the pan. So I'm hoping it will blast all the contents of the pan up the slight incline after use.
carpenter), but if I have to, then I will. What would I do, just find an inch thick piece of pine and cut it to fit?
You need flexy connector to have a fall .... even if only 1% otherwise it will leak .... don't be tempted to seal with silicon .... bodge waiting to fail.
See if you can lower the pipe run ... if not put a 1" piece of ply under pan (cut neat to match profile)