JimPA
Civil/Environmental
- Jul 17, 2006
- 3
I'm working on a pump and treat system for a contaminated groundwater site with low pH (3.1-4.5). My consern is with the material compatibility and life span of the well pumps. It is predicted that the system will operate for 15 years. Grundfos claims that the typical application is pH 4.0-7.0 and that the standard 304 stainless steel pumps last 7-10 years. The pumps are available in 316 SS but they have no known experience with water of such low pH. I have no chloride data to share. I'm looking for anyone with experiences with these pH's and/or recommendations for material selection in my situation. Any help is appreciated.