R0870-I Reagent DPD Power R0870I

One of the few places I can find replacements for my Taylor pool test kit - thanks!

I use the K-2006 Taylor test kit. I have had excellent results using this test kit. If I take a sample to the pool store with their computer driven testing machine, the results of the tests will essentially be the same. I test once a day, so I go through about two containers of the powder per pool season. So, if the expiration date is 3-6 months out, that's fine. It will be gone by then. Why use two scoops? Because Taylor says that's what to use. Any water sample with free chlorine in it will turn pink with the first scoop. The test is based on using two scoops. Not 1 or 3. The reaction kinetics will be different depending on how much powder you put in. If you put in one scoop, the water will clear that much quicker when titrating. Fewer drops will mean lower level of FC. So, now you will be chlorinating your pool based on erroneous information. You have more chlorine than you think you have so you will be over-chlorinating if you go with the one scoop approach. Taylor is the industry gold standard for testing reagents and test procedures. Do what they say. I spend $500 to $800 a year of pool chemicals. The testing reagents are chump change in pool land. Follow Taylor's instructions. They know what they are doing. I have noticed the powder will turn gray as it gets older. It is taking on moisture and accuracy will suffer. Buy the 10gram container as you need it and use as fresh a test reagent as possible. Worry about how much you are spending on chlorine. Your time and energy is better spent there.

This is a must have item. Packaged well.

Been using this product for a while and it works well, but this order shows up and the product expires in less than 6 months. Should give you at least a years use or more . No good .

This is a reagent for testing the water in a hot tub. Two scoops with the provided spoon go into 10mL or 25mL of sample water which then turns purple if any chlorine or bromine is in solution. The FAS-DPD test solution is then titrated into sample water containing this DPD powder to tell you how much active chlorine or bromine you have in your hot tub. It works great for my bromine system, and while this looks small, it's more than enough to test all through a tubbing season. You don't want more than you'll use within a year, these reagents are indicated as being good for one year from the date it is opened.