Can i borrow your eyes...

[marty]

Having trouble making this out. Is it 7.5? reddish



Is this correct?...

5.5+ chlorine= dark pink

8.5+ ph= purple

Thank you.

[youtube:vn9xi50h]CRcB_615_dY[/youtube:vn9xi50h]

 

[Richard320]

FC looks to be around 2, pH is probably 7.4.

Although if you have been dumping a bunch of bleach in, it could affect the color of the pH test and bleach out the FC indicator. Which is why we generally prefer the OTO (yellow) FC test or the FAS-DPD (powder) FC test. But don't freak unless you have been adding a lot of bleach lately.

 

[marty]

Ok, i use 12% chlorine shc.
Its a fiberglass pool if that matters.
Thanks

Do you know if "OTO" test is in my kit? (kit in video)
I serched OTO and 0 came up, how do you perform?

 

[Richard320]

OTO is a drop test, but the colors are yellow, not pink. When the FC gets real high, it starts turning orange then brown, and never bleaches out. The test block you have is a DPD test, where the colors are pink.

It's not in your kit. Your test block would be yellow on one side and orange-pink for pH on the other.

And no, the DPD test you do have is not the same as the FAS-DPD test.