thetford c4 blade opening?
the blade on my thetford C4 cassette does not open fully. does anyone know why and better still, how to fix it. If i open it as normal using the knob/handle, it only opens about 75% of the way. However it is still possible to push it further open with the handle of the toilet brush. to me this indicates some kind of wear in the mechanism but i am loath to start dismantling until i get some avice.
many thanks in advance.
AJ
AJ, June 2010