CYA present in sodium dichlor?

[mwsmith2]

dichlor and trichlor both have CYA in them You can't have either without CYA.

Michael

[poolgal13]

Thanks for the quick reply. The brand is Kem Tek, which I had purchased at Lowe's last year but didn't use very often. It's 99% dichlor......

Sounds like "adding their stabilizer" was a way to buy one more of their products.

[bdavis]

Green label like this one?

http://www.kem-tek.com/labels/poollabels/all-in-one.pdf

"The use of KEM TEKTM ALL-IN-ONE CHLORINATING GRANULES also requires the one time use of KEM TEKTM STABILIZER CONDITIONER as described in the directions below under Start Up. This two-compo-nent system results in a longer-lasting chlorine residual and reduced chlorine consumption. Both products are completely soluble."

I did see this:
1) FOR CONTROL OF BACTERIA AND ALGAE (OUTDOORS) IN SPAS: Before bathing test water pH, chlorine residual and alkalinity using a suitable test kit. Adjust chlorine residual to 3.0 ppm. After bathing superchlorinate to 5.0 ppm (1 level tablespoon per 500 gallons of water). Use a chlorine stabilizer espe-cially for outdoors, to proplong chlorine residual.

but then, also this:

"Draining and cleaning of spa is recommended whenever the water becomes difficult to manage or chlorine stabilizer goes over 100 ppm as measured with a suitable cyanuric acid test kit."

I don't see CYA listed on there, or being a stabillized chlorine. Hmmm?

Cheers

[mwsmith2]

It's in there, really!

DiChlor is:

SYNONYMS: Sodium Dichloroisocyanurate, Dihydrate; Sodium Dichloro-s- Triazinetrione, Dihydrate
CHEMICAL FAMILY: Chlorinated Isocyanurates


TriChlor is:

CHEMICAL NAMES & SYNONYMS: Trichloroisocyanuric acid; Trichloro-s-triazinetrione
CHEMICAL FAMILY: Chlorinated Isocyanurates

There's no way to have dichlor or trichlor without CYA.

Michael

[bdavis]

Yep, looks like its in the same family.

MSDS shows: Chloroisocyanurates

In this picture, it also shows stabilized on the label.


Cheers