8,400 gal Intex, 3K GPH pump, 16" sand filter, SWG CG-28669, TF100 test kit, speed stir, K-1766 Taylor salt test.
The corner stone of TFP
Pool School - Chlorine / CYA Chart
But you could claim there are some that turn it yellow or pink. Add a drop of OTO or DPD regent
Of course you need to be pretty sure because obviously it will turn if there is any chlorine in the water.
WARNING: Adding reagents to your pool is generally not recommended.
Jason, TFP Moderator
18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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