Does anyone know the purpose of the hose that goes toward the back? not the one to the boiler but the other one that goes backward and down from the t-connector? it doesn't seem to be moving any water but the unit seems to work fine.
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Does anyone know the purpose of the hose that goes toward the back? not the one to the boiler but the other one that goes backward and down from the t-connector? it doesn't seem to be moving any water but the unit seems to work fine.