has anyone actualy use the rain water for cleaning the windows, i hear loads of people talking about gathering it, but no one has said how good or bad it is,
Thanks Matts All i'm trying to find out is if it's nessesary to filter the water properly or just block the bits. The Idea of using a black IBC would be to prevent algae. The TDS isn't important at all because my tap water is well over 300 anyway so as long as rainwater is below this all well and good because the idea is to reduce costs.