Problem with Hot Weather
A friend emailed today with this dilemma: “I got a whiff of a horrible smell near my rain barrel. I looked inside, and there’s a horrible, putrid layer of something floating on the top of the water. I think it might have come from all the fuzz from the trees in the past few days. Do you think I should empty the barrel, scrub it out, and start over? I do have that screen over the top, but something obviously got through it and seems to be “growing” on top of the water.”
Answer
YES!
Solution

Keep your rain barrels clean in hot weather with these easy tips.
It’s important to do these three things to keep the water fresh:
3. A couple of times during the summer empty the barrel, take the lid off, and wash it out with tap water.