Thanks Meathman, I've knew the name was something like that. Yeah I've lifted it and cleared the darn thing four months ago. I just think that it shouldn't be blocking as there is only me in the house and though I might talk alot of ****e...
The pipes from the main toilet have to around the corner of the house where they connect to the ensuite toilet and then there is an AJ. This then carries on uphill to the sewage tank.
I've tried reading the technical guidelines but its all doubledutch to me!