Planted Tank Guru
Join Date: Jan 2010
Location: Contra Costa CA
I drain the tanks that are higher up into a plastic storage bin, use this water to clean the filter, then pump it out to the garden. I use a fountain pump that can move about 200-300 gph. I attach a garden hose and trail that through the house. If I want to pump water directly out of the tank I wrap the intake so the fish cannot get trapped.
Lower tanks (usually smaller) I will use a small fountain pump to empty (again, into the tote). Since these tanks are smaller, a pump of around 100 gph is as fast as I would want to go.