Toilet flush

IanH

Once again, our toilet has stopped flushing. The pump is whirring away but no flush water appears.

This has happened before and usually holding the button down for a considerable period eventually causes it to re-start. Not this time it would seem.

These electric flush things are a right pain - there was nothing wrong with the pump handle on our last caravan, but they had to replace it with a crappy battery operated motor

Any ideas?