LC date code interpretation

[texasAUtiger]

Day 60 of 2021?

Smells almost like water and 32 oz moved by pool 0.5 ppm. Same thing yesterday.

I’m thinking its strength has been compromised.

The Pool Essentials LC that I got from Wal-Mart was also 10% and smelled very strong.

 

[Kellyp]

March 01, getting kind of old, was it stored outside as well?

 

[JoyfulNoise]

No.

155th day of 2021. The first row of numbers.

 

[Kellyp]

Oooops, couldn't even make those out!

 

[JoyfulNoise]

It was manufactured in late May. Old’ish but not significantly degraded.

 

[texasAUtiger]

It was manufactured in late May. Old’ish but not significantly degraded.

Smells about like my pool water at 5ppm FC.

 

[JoyfulNoise]

Odor is not a good indicator of liquid chlorine strength. If it’s not bringing your pool up to the desired FC level then I would suggest you do an overnight chlorine loss test to make sure you don’t have chlorine demand from another source.

 

[texasAUtiger]

OCLT is fine the last 3 days.