My employer has a one pipe low pressure steam heat system. Some of the system is fairly old. One of my jobs is to "blow-down" the boiler each week during the heating season. Lots of rust! Recently we had to have a backflow prevention valve installed and I asked the tech doing it if there was some kind of anti crosion compound we could put into the make up water. He said the way to deal with the problem was a system that continually adds chemicals to boiler water. He estimated around $1k. I would appreciate any opinions. Thanks.
- posted
20 years ago