Ok.. I’ve been doing this for I bit, but I’m totally confused with how my readings and results can be sooo different from our local pool supply house. I pulled a sample and did my tests.. TA came to 70... I added 2+ lbs of soda.... I then took the remaining sample water to TexSun and they tested with their BioGuard system and came up with a reading of 38?.? No way! They wanted me to add 15 lbs of soda... that was 3 hous ago.. so I tested my water again.. and my results are as predicted since I added the soda.. @ 90...
how can they get it sooo wrong...???
how can they get it sooo wrong...???