Just checking over the Imperiale before maybe the last trip this year, all good bar the electric flush didn't. Water in tank check, 12v on check, water pump energising check but no flush. Open the cassette door and see the water feed pipe is two types with a join clear coming up and clear with reinforcing strand (changed before?), split that and found out water gets that far and on quite a spurt! Must be a blockage further up? Put tyre pump to the other pipe and after a bit of back pressure air flowed freely. Looked in toilet bowl and there was a lump of pink gunk. Turns out SWMBO had cleaned the toilet and left a residue blocking the nozzle. 2 morals from this 1. check obvious first 2. do it yourself!