I have a question as to why readings with the tf-1oo kit are off compared to a local store.
I had my pool installed last fall and basically closed almost immediately. The builder returns and opened the pool mid April. The water was clear over the winter. I was not home at the time but my wife said they added some chemical and asked that we bring a sample back in about two weeks.
The pool is 14000 gal fiberglass salt water filtered with sand.
Around the 1st of May I took a sample in and here were the results:
Water temp was around 58
The builder told me to add 2 lbs of dychlor , 20 oz of muriatic acid, 5lbs of calcium increaser and when the temp came up to around 70 to add 10lbs of stabilizers, suggested filling a sock and allowing to dissolve over a couple of days.
May 10ish I purchased the TF-100 kit and tested my water….
All of the readings I took were in the suggested range my builder’s print out . except the CYA but I was still adding….needless to say I was very happy.
Yesterday, May 17th I tessed again using the TF-100
I was happy but decide since I was going by a pool store, not my builder, I would take a sample to see how my readings stacked up:
Their print out:
Why the big difference in FC, TA & CH?
I went to a different store because my building is close to 75 miles away….yes this is a long way but since his reputation with fiberglass was very high we choose him over closer builders
Thanks in advanced....Dave