ShadyGreenThumb said:@UrbanWild wrote: "The various roof coverings on my structures are all variants of tar and asphalt which impart pollutants into the water."
UGH I did not know this! I have 5 rain barrels collecting from my rain gutters. Though my plants do not act as if I am poisoning them, I suppose there is no way around this? I have regular shingles.
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