"Rex" wrote
-I don't have water at my shop, because I'm cheap and I don't need
much
-water. But I do have a small window unit, and a barrel under the
-condensate drip hole. Right now I have about 20 gallons in the
barrel.
-It will do until I get the rainwater catchment system finished. then
-i can clean the shop floor

Landscape fabric makes a good, durable filter across the top of the
rain barrel. I put tarp clips in the corners to hang it up to hose off
the pollen and other roof and gutter crud. It didn't pass water until
I sprayed some soap on it.

A section of flex downspout directs the water out onto the cloth, and
is easily moved out of the way to clean the filter or pump out water.
In the winter I can remove the barrels and redirect the flex spout
downwards.

jsw