We picked up and fitted another rain water butt to help store some more water. I daisy chained it to our existing one. It rained quite heavily the other day and filled the first one up and began filling the second. I was uncertain how high up to put the connecting pipe. I put it about 1 pipe diameter below the inlet, my thinking was that the first tank will fill up then it will overflow into the second. Any matter that enters the first tank, such as moss and the like will tend to sink and not go into the second tank. When the second tank completely fills, then both tanks will continue to fill up to the inlet level and water will flow back into the down pipe. Lastly, had I connected the two tanks say halfway up and then the pipe connection leaked I might drain down […]
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