Back in December when I closed the pool I treated it with a chlorine enhancer. After that none of my chlorine tests (DPD, OTO or strips) worked, not even now 3 months later.
Any ideas? I know there is chlorine.
Printable View
Back in December when I closed the pool I treated it with a chlorine enhancer. After that none of my chlorine tests (DPD, OTO or strips) worked, not even now 3 months later.
Any ideas? I know there is chlorine.
If there is chlorine present in any form, OTO (clear -> yellow drops) will show it. If OTO shows nothing, you've got nothing.
"Chlorine enhancer" is a marketing name, not a chemical. It could be anything, but most products described like that cause serious problems. What "chlorine enhancer" did you use?