Taylor Technologies R-0871-E FAS-DPD Titrating Reagent, 16 oz, Liquid

Does what it’s supposed too and cheaper then the spa shop

Same stuff as the little bottles. If you check your chlorine levels often, like you should, this will last a year and save you money. Just pop the top off the little bottle and use this to refill it. Purchased a few times and the expiration date has always been fine.

Great value, especially when SLAMing. Says it expires after a year, so this much may not be needed for everyone.

I follow the TFP (Trouble Free Pool) system of care for my pool. During the SLAM process (Shock, Level, and Maintain), there are many FC tests to maintain liquid chlorine at sanitizing levels. This is the regent used for the FC test. The size of this bottle of R-0871 reagent has been wonderful, as I have filled my smaller bottle that came with my Taylor test kit several times.

Great product, but DO NOT buy from "PrimeTimeServices" no matter what. I paid extra for expedited shipping, still took almost a week to get here, tried to return it because I bought it locally because I needed it in the promised two day delivery time. But they are charging me a $29.65 "Restocking Fee" because they took 3 days to ship the item, but "it's not their fault".

Bought to replace the small bottle from the Taylor kit. Its easy to refill the original bottle from the kit.

Here in SF Bay Area, I tend to keep my pool uncovered and very warm during the summer. But that means lots of chlorine loss. Even with salt water generator, I like to do lots of testing. This bottle makes the FAS-DPD testing more affordable. I keep the unused portion in a wine fridge at 58 degrees F and in a dark part of the fridge with no light entry. I then refill my 3/4oz drip bottle when needed. So far, this regent has lasted 3+ years without any apparent degradation. Towards the end of a bottle, I will compare test results with a new bottle, and they are identical. Same for cyanuric acid reagent which also lasts over 3 years if properly stored.

I have both a in ground pool and hot tub so testing free chlorine is a must (I'm a liquid chlorine in both the pool and tub). A hot tub requires frequent testing (I test daily) since the volume of water is low (compared to a pool) and fluctuations in water chemistry can happen within hours. You can test your pool once a week without major problems if you keep the water balanced, but not a hot tub, I choose to test once a day. This solution came quickly, it was well packaged and allows me to refill my dropper bottle 8 times, saving a bunch of money if I were to buy a 2 ounce bottle every time. I use the TFT 100 test kit and this solution combined with the DPD powder (R-0870) in the quarter pound packaging is a great buyand will keep your sanitizer level dialed to the 0.5ppm mark. Highly recommend getting this and the powder if you are using test strips or are just measuring total chlorine / bromine levels and arehaving problems with your water.

Took a while to arrive from the US, but worth the wait and cost to have this reservoir of FAS-DPD titrant on hand. Dropper top of the standard 2oz bottle removes and replaces easily to allow refills from this large bottle.

Arrived as described. Simply refilled my existing small drop container.