Tangential! I bought a 210L water butt to collect rainwater to water plants a while back. It cost £110 to my door with the all installation parts. Out of intere

Tangential! I bought a 210L water butt to collect rainwater to water plants a while back. It cost £110 to my door with the all installation parts. Out of interest I looked up that the cost to fill it with pristine London tap water would be ~52p. 211 uses and I'm at breakeven, money-wise.