Old PS233 test kit -- what reagents/chemicals do I need to replace?

[oscarlet]

thank you

[waldreps]

What's the proper Phenol Red solution to get for testing pH? I also have a PS233 kit and need some new reagents. My Phenol Red in my kit says R-0014 but on spspools-spas.com they only list R-0004A. Is that an acceptable substitute? What's the difference? Also the same question for the OTO reagent that is listed as R-0600 in my PS233 kit. What is the proper substitute for that since I don't find that on their website either?

Thanks,
Stacy

[aylad]

The R-0014 R-0004 are different reagents, and will not work interchangeably. The OTO kit in the PS 233 is just a basic OTO kit and can be bought by itself at WalMart with the proper reagents already included. It will be cheaper to get it that way than to pay shipping for the OTO reagents. Our Leslie's also sells the R-0014, if that's the only one you need.

Janet

[waldreps]

Thanks, Janet. I just have my order ready from spspools-spas.com with my other stuff and the phenol red R-0014 is the only thing else I need that they don't list. I found it on Amazon but don't want to pay shipping for just that. I also would prefer to not to buy a whole kit just for the one reagent. Since you order your stuff from this same place, what do you get when you need phenol red?

Thanks,
Stacy

[aylad]

I get a new OTO kit from WalMart for $3.99.

Janet

[waldreps]

Oh, geez.....I didn't know they were that cheap. I guess that's the best thing to do then. Thanks.

[PoolDoc]

The 3.99 kit from Walmart is NOT the same as the OTO kit in the PS233; it IS the same kit that is in the HTH 6-way drops kit, which is available at some Walmarts.

The main difference is that the phenol red reagent in the K1000 / PS233 / PS200 / HTH 6-way is pH protected, and also gives somewhat more intense colors. If you use non-Taylor phenol red you will lose some accuracy at all levels, and quite a bit, if the chlorine is high.