Plumbing Questions? Ask a Plumber and Get Answers ASAP.
Hello and welcome to just answer my name is ***** ***** I will be the one to assist you. My suspicion would be a seized pump impeller due to corrosion. This can be fixed if you handle it properly, the best way is to remove the pump and run it in a bucket for a few mins to free it up. You can use a small screwdriver to gently persuade the impeller to start turning again, presuming the corrosion has not gone too far.The pump is accessed from the cassette door, outside of the caravan, it's housed in the exterior cassette box, near the front on the right at the top. Its the blue thing.