Taylor Replacement Reagent FAS-DPD Refill Kit (Large) - Over 100 Tests

I've tried to be lazy and use the quick strips to test my pool chemistry, but I've never found any brand to be accurate for testing free chlorine. The FAS-DPD color titration test is just the only way to go. Chlorine is expensive and if you run out of it after super-shocking your pool trying to get the test strips to show that there's more than a tiny bit, you'll end up a green pool and then a clogged up filter, and maybe too much cyanuric acid depending on what shock you were using and your pool is just going to keep sucking cash. As soon as I went back to this test, I have been managing my chlorine usage better and the pool and filter are needing a lot less maintenance.

Pros:-will last 4+ months-continued Taylor quality-refills my pool testing kit instead of having to buy a new one-chlorine reagent is larger than what comes in the original pool kitCons:None! A clean pool is a happy pool! Taylor chemicals testing is good quality, easy to use and saves a lot of money on a pool service.

This kit comes with the powder and the small spoon required to measure the powder. I have used other more expensive brands and I have used them together. The Taylor reagent works as well as the more expensive brand.The reason to use this powder in your pool is so you can measure you chlorine levels to a 1 ppm. If you keep having algae blooms and you keep getting your pool clean and get another boom try this. Remove all automatic chemical equipment so there are no new chemicals added during this test. Measure your chlorine levels at night right when the sun sets and at least 30 minutes after adding any chemicals. In the morning before the sun comes up measure the chlorine level again. Compare the two measurements. If the free chlorine level drops more than 1 ppm between the two you have some sort of organic material using your chlorine. If your pool looks really clean and you cannot pass this test most likely you have algae growing in your light niche. Pull your light out and clean that niche out or take a relatively high pressure hose and spray water into the edge of your light from the top and see if algae comes out the bottom if it does keep rinsing until no more comes out. Clean what comes out off the bottom of the pool and run the test again the next night.If all your other pool chemical readings are good and you get any organic material issues fixed your water will shine.

My old powder turned purple/black and became a rock after years of storage, so I replaced the chemicals. This powder is closer to a fine white sugar and very easy to scoop. Both containers are well designed - the powder container is crisp to use and the liquid container makes it easy to apply drops one by one. Otherwise it's the same old chemicals from Taylor. Haven't found anything better so far.

This is the go-to method of checking chlorine levels in pool water for professionals and those "who know". Simple, accurate, fairly quick and cost effective. I've been using these items for years and fully trust them. Nothing else I've tried comes close regardless of cost. Keep the powder sealed and indoors and it can work properly for years. If the white powder turns grey it is compromised and should be replaced.

Exactly what I needed and had before. No issues

Using these chemicals has made it that we are more confident is the chemical readings for the pool. Ease to use and the accuracy is so helpful. Makes the process of daily testing so easy!!

In order to keep your pool looking great you need to know accurate chemical results. I use a Taylor K-2005 kits for years which works fine but difficult to read color match to get accurate result. This kit is much simpler and more accurate way to measure the chlorine level. Instructions are very clear. For .5 accuracy Fill the vial with 10 ml pool water. Add 2 dippers of R-0870 powder shake. Sample will turn red if chlorine is present. Add R-0871 dropwise until water is clear. Divide # of drops by 2. That's your chlorine reading. No guessing. Also recommend pool app which will