Some people have had luck looking on www.pumpbiz.com
I use an old drill and a long, bent rod like a paint stirrer. Works
great for 20 gallons or so - all you need is a vortex on the surface.
Stainless will work for immersion. I use quite a bit of steel and have
yet to have a problem.
Good
As for the pump harbor freight has a 1
clear water pump $37.00 aprox also available on line I use one for 120 liters
no problem as of yet and at the price you cant go wrong.
Immersion heater stainless steel would be
good but I work to hard to pay so much for that so I use a standerd 240
