Posted by Harold Kestenholz - Hydronic Network on July 18, 2001 at 09:45:25:
In Reply to: boiler refill posted by gregg mcginn on July 18, 2001 at 08:35:41:
Test the water that will be used to fill the system. You can have it tested at many plumbing suppliers and county agricultural departments. A Ph test kit is available at large shopping centers and pool suppliers. You want to know if the water is corrosive or has harmful chemicals in it. If the water is good, but a litle acidic, you can add chemicals available at the pool or plumbing supplier to neutralize (make the water Ph at 7 to 10.)
If your water is already neutral and does not have a lot of hardness, you can just fill the system and purge the air. If the water in the area is bad, you can pump in distilled water and a little chemical to adjust the Ph, then top off the little water required to set the system pressure with the residential water available.