Recent content by Truax13

You should have a vent, preferably a spirovent (as air vents on manifolds, etc are largely unaffective). On the Spirovent there is a female thread on the bottom where you would mount an expansion tank. The autofill should mount between the vent and the expansion tank. Then, of course, the...

Water is full of oxygen. Oxygen rusts out any iron components in the system. An open loop system always has 'air' in it. Pumps operae by creating a pressure differential between the inlet and outlet side. In inlet pressure will be below atmosperic thus drawing more air in. Fresh water also means...