[longmian]

Hi guys,

This site is really awesome. I've got most of my questions answered as I am trying to do it myself, thanks to all the people who are monitoring this site and others who are just contributors. It is fun.

Anyway, here is one question I have been asking myself. Air in the pipe is very common as a lot of other threads have been providing solutions. The question is, I've done my homework to purge the pipe for a long time, is there a worry free solution to this issue?

My problem is that I am at the end of the street. The water pressure is really low (for purging air out). Plus, 3/4' pipe line going to the second floor is long so that the pressure drop is big. When the circulator pump is running, if I open the cap on a tee (I do not know what this thing is called) upstatirs, sometimes I hear air getting into the pipe instead of going out (well, you may say my pump may be weak).

I am living in New England. My house is about 2200 sf and a regular colonial style. The heating system is in the basement. It has 3 zones (2 downstars and 1 upstairs), with a TACO 007-F5 pump and 3 TACO zone valves. A Honeywell Aquastat is controlling the pump and the gas burner. I have an expansion tank on the main line coming out of the burner.

I have been thinking of an air scoop with or without an additional expansion tank. Is this something I need to pursue? Do I have to install one for each zone. Or, is there any other solution?

Thanks in advance!

Long