Pool Math and Diclor percent

[Karl103]

Question about the PoolMath app and Diclor. The app only lists “Diclor”. But what percentage does this refer to. Diclor comes in variable percentages especially for spa shock. If it applies to 90% Diclor in the app does that mean if i am using 33% or 53% does that mean the expected rise in FC and CYA would be roughly 1/3 and 1/2 of what the app says it will be?

 

[Richard320]

Don't use the weak stuff. It's got something else mixed in, probably to counteract the pH effects. Dichlor is dichlor. like salt is salt. Would you buy 50% salt? Big rule of TFP is don't add anything to the water unless you know what it is.

Leslie's Chlor-brite is listed as 99% on the website and 98-100% on the SDS

 

[Karl103]

Thanks makes sense. But if I happen to have 55% Diclor can I take 55% of the weight that I use and enter in to pool math?

 

[mknauss]

Be sure the 55% does not relate to 'available chlorine'. If it says that, that is 100% dichlor. Dichlor is right at equal parts chlorine and CYA.

 

[Richard320]

Be sure the 55% does not relate to 'available chlorine'. If it says that, that is 100% dichlor. Dichlor is right at equal parts chlorine and CYA.

Good point.

I assumed it was like this https://images.homedepot-static.com/catalog/pdfImages/c2/c2477935-0fb5-4b1e-93ce-f7bce94debfe.pdf