I have been having a recent battle with cyano and then I realized that I haven’t replace my membrane or DI cartridge in many years. I cannot recall if it was 2008 or 2010 but either way, it have been too long.
When I tested the water coming out of my Kent Marine Hi-S unit about two months ago, my TDS meter was showing 003 ppm and just the other day, it is showing 054 ppm. Even though it is not too high, I have a feeling that it might be contributing to my cyano problem.
There is good news and bad news but mostly good. When looking for replacement parts I found that the prices for the Kent Marine membrane and filters went up a lot since the last time I bought them. The good part is, I stumbled upon the Spectrapure website and found better replacement parts for almost half the price. The other good news is, I am upgrading my membrane from a 60gpd unit to a 90gpd unit by replacing the flow restrictor for $5.00.
My parts should be here next Wednesday and after I have them running for a while, I will tell you how they are working out.