sorry about my wording. It's called a tubing not a plastic pipe. I'm so new at the pond subject. I should add that I could probably buy a less powerfull pump. Can I ask if the Pacific Hydrosta Pump are a good one ? Someone sold me this pump in not a new box and I paid $ 149 for it. When I searched there were many cheaper pumps available.

I assume it is hydrostar since that is the only thing that comes up in a search. Haven't heard of them. Did 5X mean five times for a day each, or five years, or something else? It might be good to at least have a guess as to the size of your 'hole'. One foot diameter? Three feet? How deep etc.

if you are looking for a new pump,go with supreme a mag drive.i have had mine for 12 yrs.they are also energy efficient.very easy to repair.

I have had a Pondmaster magnetic pump for about 6 years and it is easy to use, easy to repair (only one part to replace) and I love it. I don't know what model you would need - it would depend on how high you are pumping the water I guess - but Pondmaster makes lots of different strengths of pump.

I don't know why your pump would be showing, but mine stays in the bottom of the pond where it belongs.
Anne

A pump that is clogged with debris might float. They are usually too heavy. Do you have a prefilter attached?