Pond Boss Forums POND CONSTRUCTION Renovating a Pond or Lake? Semi Trash Pump

Whatever hose size or semi/full pump you decide on, babysit that pump when the muck gets milk shake thick. The thickness and weight can keep the pump from lifting, and it just churns the muck. If the pump housing is aluminum, it looks at muck like sandpaper. Yes, I've been there with a track hoe operator sitting in the cab watching it.

Afterthought: If you buy the Harbor Freight pump, make sure a replacement pump housing is available. Northern Tools do offer them on their pumps, but they're not HF cheap...