Kem Tek 338 vs Jack's Magic Purple Stuff in salt pool?

[JimK]

All the products you mention are HEDP. Kem-Tek is a 20% concentration, but I don't know the concentrations in the Jacks' product. Other than impurities they should be identical . . . IF you can determine concentration.

HEDP was developed by Monsanto as part of their "DeQuest" line. I'm not sure if they still make it; probably most of it is coming from Asia now, as chemical regulations make it extremely difficult to manufacture commodity chemicals profitably here in the US. Asian purities can be suspect, so the question is about quality control, but I doubt you're going to get good answers there.

Thanks Ben. As you well know it's frustrating trying to compare products with the lack of good information from manufacturers. While I was able to find Jack's Magic uses HEDP, like you I was unable to find the concentration.

Do you, or anyone else here (chem geek?), have an idea of how HEDP behaves in a high TDS/salt environment? Is is simply a matter of having a high enough concentration of HEDP to be effective in such an environment?