The grids were cleaned as part of the winterizing process. Kinda hoping that it didn't get dirty so quick again because I've got one of the filters with like 20 bolts you have to remove to open it.

I think maybe tonight's plan of attack might be open the drain valve on the filter and vacuum right to waste. Do that for a while, then try the filtering process again.

Sound like a good plan? You guys think that'll help it?