My saniflow is running on after the flush has finished. If it does need cleaning out as mentioned before, how do I do it? There is an opening with a round lid on the top where the water was pouring out. Is this where I need to get into the saniflo? What do I do to clean it out.....not sure I want to know the answer, but I cannot afford the cost of an engineer!

Dorset Dolly, October 2010