On the light side...

jblizzle

Mod Squad
TFP Expert
LifeTime Supporter
May 19, 2010
43,238
Tucson, AZ
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. :mrgreen:

WARNING: Adding reagents to your pool is generally not recommended.
 
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