Rain Water Catchment: All 4 tanks in position, levelled, and connected via a 40mm pipe running along the bottom

Rain Water Catchment: All 4 tanks in position, levelled, and connected via a 40mm pipe running along the bottom

Rain barrel idea... I'd put both the 'in' & the 'out' on top, otherwise the top ones would not fill up.:

Rain barrel idea... I'd put both the 'in' & the 'out' on top, otherwise the top ones would not fill up.:

How to Build a 3 Drum Rain Water Collection System

How to Build a 3 Drum Rain Water Collection System -

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