Thanks Whale! Mark tried to phone you today to ask about the water pump. He left his details and you were supposed to phone him back. We are still waiting. Rubbish customer service.
But thank you Broad Lane Leisure! Mark phoned you to ask about the water pump and you were most helpful. The problem turns out to be we leave our water pump coiled in the sink. This makes it want to naturally "curl" and when the water level goes down the pump floats under the "curl" instead of sinking to the bottom. Once it floats and air gets in there it just stops working. Simple as that!
Mark borrowed one of Jenny's awning poles and cable tied the pump to the awning pole. The pump is then forced to be at the bottom of the container and be fully submerged as the pipe keeps it straight. It works! We have had continuous water all day and it has worked fine.
Tonight we popped to the shops as they were late night opening.
Oh, and today I started another Heidi Bear Happypotamous.