Originally Posted by shawndoggy
Unless it's creating such forceful suction that the heater hose is pulling a ton of water past the thermostat bypass?
In thinking this must be the case. And not really the thermostat bypass as mush as it is the wye allowing for a lot of suction that is just draining the block of hot water and the impeller is filling up the block with cold water
Does anyone know if the actual Heater Craft Wye has a smaller inside diameter on the 5/8" barb (IE restricted to 1/4")?