My thoughts of putting it as low as I could with out pulling up clay from the bottom was to move as much water from the bottom as I could. Weather that is correct or not I do not know but I have not had any problems yet.

Cleaning consists of me floating with a life jacket on following our the line then hand rubbing the disk with my fingernails. There gets to be some crusty thing that trys to close over the holes.

Cheers Don.

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7/8th of an acre, Perch only pond, Ontario, Canada.