Quick Questions about P/S Piping

Climate Creator

Ok, sorry to beat this to death, but I have Dan's pumping away book, and I just finished reading the article at www.hydronicpros.com , Ok so here it is:

1) Is it true when connecting to a gravity converted loop let's say 2" that I divide that by half 1" and drop 1 pipe dia. 3/4"? to my Primary loop? And should the circ be closer to the primary or secondary in this case?

2) Also along the same lines should the circ for the Indirect flange at the tank or at the primary? Does it matter? Why?

3) Should I even bother with the micro bubble air sep. on the primary (piping as in Dan's pumping away book) when I will need separate purges on each of the secondary loops anyway? And if I should keep it, is it of any help when pumping away towards the Air Sep. to drop a pipe size on the separator size at that point? (Dont' shoot me Just curious if would assist in air removal with a micro bubble)

4) When piping my primary then, if all is true in question 1, why would I need to be at full port (in this case 1-1/2") when I am only taking off for an indirect at 1" and the gravity loop at 3/4" would it really still be necessary?

Sorry if I have insulted the intelligence of anyone here or made myself seem a few less pegs on the IQ test, but I can't and won't ever get it right if I don't ask. I WILL NEVER be that contractor that the homeowner send pictures in about! I refuse!

Thanks in advance,

Rich