Testing for chlorine and getting a big discrepancy between the K-1000 chlorine reading and the one from TFT kit with DPD powder. The DPD powder is a new container, so I not suspected a problem with it. The K-1000 is reading 3-6, while the more accurate DPD is reading .5 for free chlorine and .5 for CC. Using the .05g scoop that came with the TFT kit to put the "heaping" scoop in the 10ml of water and following the rest of the directions...
This is my second year doing my pool using TFT methodology. I opened the pool two weeks ago. Its heated at 88 degrees, rest of my readings are Ph 7.6, TA 100, CYA 30 and borate 50. I have co0nditioner in two socks in the skimmers to bring the CYA up. Borate tested at 50 when pool opened so did not add any this season (yet). I only use liquid bleach for chlorination. Use solar cover at night.
Last year my pool was crystal clear all season. Now, it's not completely clear in the deep end, and I have soap bubbles on the surface, really noticeable when I run the waterfall.