Fast Purge/drain on the boiler supply side?

ted_15

ted_15

Fast Purge/Drain on boiler supply side?

My house has odd near-boiler piping. Four return lines with 4 circulators go into 2 different boiler return tappings (one in the rear, one in the front). No central main return, so no single place to do a proper drain tee/main return isolation valve/water inlet feed string of fittings to do fast purging of any single or whole system air purging after doing any boiler work. Does anyone have advice on whether I could put that string of above 3 components on the single supply main (which I do have)?

If doable. I was planning to loacte it just before the supply air elimination scoop/auto vent and the zone manifolding. The water makeup feed now is on one the return lines, before its circulator.

Many thanks

Ken_40

The complexity...

Of what exists is difficult to "see." Any chance you could shoot us a digital photo or three?

If you can, remember to reduce the pixel count to a mximum of 600 wide.

We can help!