There are two separate issues here: how quickly CYA granules disappear from the sock and when the increase in CYA concentration is registered in testing. What I noticed is the granules from Leslie’s are relatively large and take a long time (hours) to pass through the nylon socks to the water. In contrast, the CYA branded by Chlorox (picture below) is powdery, so squeezing the socks is very effective and it takes 20 minutes or so. Now the socks are empty but CYA dust settles on the bottom and the walls. I leave the pump running and my Polaris 280 rambling in the pool for at least 3 hours to raise the dust and catch it in the filter. Even in the dust form, CYA takes a long time to dissolve and fully show up in testing, I think a couple of days.
Attachments
Last edited: