Using the optional bottom drain accessory (shown to the right ) simplifies this task even further - allowing you to empty nutrient-rich pond water to your garden. No fuss, no muss, and no ruined clothing.
This is not to be mistaken for a conventional bottom drain.
Filters that have not had water circulating through them for the winter should be cleaned well before turning the pump back on this spring. Cleaning will remove toxins that can develop from waste breaking down in the filter in the absence of oxygen. Once your filter is up and running, seed it with beneficial bacteria.