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I have a waterbutt attached to my summerhouse and despite cleaning it vigorously and scrubbing it until the water is totally clean, every time it rains the water ends up sligthly green and frothy. Why is that and is it still safe to use?


The green is algae, the froth is from that and yes it is safe to use on plants, just don't drink it. Simple in a way, if the water smells ok, or has no scent then it is usable.


Perfect, thanks so much. No smell so guess OK. thanks

There is a new one on the market that claims to reduce stagnation its called rainwater terrace and out soon i think.... could be the solution to patio gardens etc with water on hand that doesnt smell so much..

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