if you put a water diverter with overflow on the downspout itself, then you wouldn't have to build an overflow system out of your rain barrel. the diverter would stop the water from going into the system once full instead of constantly putting water in and out of the system
if you put a water diverter with overflow on the downspout itself, then you wouldn't have to build an overflow system out of your rain barrel. the diverter would stop the water from going into the system once full instead of constantly putting water in and out of the system