I will have to get the specific information next week on the salt water converter. Like I said it salt water concentration it measures varies day to day driving me crazy. I have been researching VFD and 3 phase pool pumps and I have read a lot of complaints about the Intelliflo VFD controller failing and you cannot just replace that one part you have to replace the entire pump. What I have found out is that you can buy any 3 phase poop pump and buy a VFD separately and you have a system similar to the Intelliflo that can be repaired. The only question is what VFD to use with which pump?