The toilet flush pump has failed to work the last two times we've been caravanning. Discovered that the 'spinner' at the base of the pump was stuck and that when I freed it the pump worked as normal. Anybody know what causes it to stick?
Do you use a top tank additive? If so do you use at the correct strength? It could just be the additive drying out after draining down. You could try flushing a mug or two of fresh water through the system then draining down again.
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