Vertex 12.5% Chlorine

[DorsalSpine]

Anybody know the date code for Vertex?

C299004D

This is my first swim season with the auto cover and I'm having problems with my chlorine levels. I'd thought I start with the date code first.

 

[Donldson]

If it is a date code, my guess would be C = March, 29 = 29th, 9 = 2019.

 

[DorsalSpine]

Makes sense. Thanks.