FirstcoalstokerRon wrote:My question is can I install the tank 6 or 7 feet from the air purger connected by a1/2" copper line and should the auto- fill valve be teed into the 1/2" line between the purger and the tank? The purger is in the 1.25" supply line after the boilers but before the circulators.
Yes. The expansion tank can be mounted some distance away. Put a tee on the bottom of the air scoop and connect your auto fill valve there.
FirstcoalstokerRon wrote:Can I have both the steel tank and the bladder tank in the system at the same time?
You should only have one or the other. One system is air management (all the air goes into the steel tank), the other is air elimination (air scoop removes all the air). If you try to run both the steel tank will get filled with water.