diy overflow

[banditpowdercoat]

Paul, why doesn't the water all come pouring out of a water cooler bottle when it's placed on the cooler?? Because the water level in the reservoir is higher than the neck of the bottle and stops air from getting in. Thats how his overflow is working with the upturned hook on the inlet. It doesn't let air into the upper part of the plumbing so the water does not come out.

You of all people should see that.