I have been taking my water to the pool store for testing and have recently started self testing with a HDX 5-way kit from HD. I tested prior to going to the pool store and my PH was calling for 1 pint of acid. I have it tested and they tell me its at 8.0 and needs 2 quarts. Am I just testing it incorrectly or what??? I would like to start just doing it all myself.
Also I have high calcium hardness and the store convinced me I needed 2 bottles of salinity stain control at 25 bucks a pop. I just don't want to be taken for a ride based on my inexperience. (new pool owner)