Convinced FAS-DPD is giving false high

kimkats

Mod Squad
LifeTime Supporter
Jul 10, 2012
49,194
Tallahassee, FL
Ding, ding, ding............we have a winner in @Charles Bezzina I had forgotten about another member who has the same problem. He made a bleach sample that had almost all bleach in it but it only read at 5 at the pool store! When he asked them about it they confirmed their machine did not go over 5!
 

Mdragger88

Bronze Supporter
Jun 1, 2018
3,140
Hernando, Ms
Pool Size
26000
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
Intex Krystal Clear
This 👆🏻
they tested mine (i was just there for salt confirmation but they ran the whole gammot) I had at least 20ppm (i was slamming) & they said “Wow, your chlorine is high!” Their test showed 10ppm…