I am a new pool owner and still awaiting my TF-100 Test Kit. For now I am using the Oreq test kit that was provided by PB.
I am concerned about the amount of chlorine loss during the day. My pool gets about 12 hours of sun each day (7 am to 7 pm). Currently I am using just Muriatic Acid and Liquid Chlorine (10%) to pool.
I am adding chlorine in the evening at about sunset. I am testing water two to three times per day for CL and pH. An hour after adding liquid chlorine (about 1/2 gallon) these are my readings:
TA - 90
pH - 7.8
FC - 2.5
Sorry these are the only readings I have with my current test kit.
Testing again in the morning (7 am), chemicals are at the same level (no chlorine loss).
Testing again at 10:30 am, FC is about .6
By the end of the day FC is at O.
Water is and has remained crystal clear.
My concern is why am I losing so much chlorine during the day? Is that strictly from the sun? Is it still safe to swim? Should I add chlorine during the day? Should I be adding more chlorine at night to get the FC level higher?
I know the amount of FC needed is affected by CYA, but I can't test those levels until I get my TF-100. Is it worth going to pool store to get tested or should I just wait for my kit?
Pool was filled June 28, 2013.