Great info!! Thanks you guys. Just what I was looking for!
I do have an auto feed, but I check boiler pressure every day, I try to keep
cold pressure at about 14-15. the hot pressure usually goes up to 20-22
at 180F high cut-off. I will definitely get a new bell & gosset pump. Thanks.
Also I DO have the calcium deposits around some joints!! I thought that might
be a problem, but my brother-in-law said no. So i will be replacing some
solder joints for sure
If you don't mind I would like to ask a few more ?'s
Three of my zone valves are the original ones. If only one zone was calling
for heat, and the valve on that
zone was defective (stuck closed), and the
pump could not push water through, would the water be forced out of the
pump seal? Or would the pressure relief valve open?
I'm asking this because I'm thinking of getting one of those manifolds that
you guys use with the zone valves already installed. All the piping for this
system was done by the previous home owner. It works (except for the
leaks) but it's kind of a tangled mess of pipes, drain valves, shut-off valves
and zone valves floating
in mid air mostly supported by the boiler itself.
If you guys think it's a good idea, I would like to install one of those
manifolds on the wall next to the boiler, and connect it up to the existing
zone piping with 3/4 in. or 1 in. pex tubing. The I would be rid of all the
old leaky valves and solder joints.
I suppose those manifolds are really costly though