My new pool is now 3 weeks old and is sparkling and clear thanks to all on this forum. Initially I've been using TriChlor to build up the stabilizer in my pool. My CYA as tested by my TF-100 is around 30 + or - 10. I've now switched to 10% liquid chlorine as to not add more stabilizer. I've been getting 2gal of 10% chlorine for $6 at Walmart. (yes i checked the production dates are recent to ensure strength) I've read elsewhere that I'll have to worry about the TDS Total Dissolved Solids using liquid chlorine. What are these TDS's and should I really be worried about them? Thanks in advance for your replies!