Perhaps there is some variation, but the little red speed control on my pump acts like a continuous rheostat. I do not need to worry about having the dial exactly on one of the numbers--as I turn the… (View Post)
@Dalehelman, if there is an air pocket inside the boiler core--as may well be the case when the system has been drained and refilled--running the heat could burn out the electric elements (which are … (View Post)
@Mega, can you clarify exactly what you did? How much drained when you pulled the brass plug? Did you drain a gallon at that time, or is that what you got after drawing the fluid out with the shop va… (View Post)
A Zamp suitcase should be plug-and-play with the existing SAE port on the side of your tub. You will pay for that ease of use, however--Zamps are pricy but reportedly top quality. (View Post)
FWIW, I also experience some variability in trying to get the pump to pressurize the system to the point of smooth on/off operation, which I also attribute to small air bubbles (probably in the hot w… (View Post)