Spa Chlorine for Hot Tub Sanitizer - 5lb - Quick Dissolving Hot Tub Chlorine Granules, Spa Chemicals Made in The USA - AquaDoc

Best value for your money! We use this for our hot tub at home and it keeps the chemicals balanced well without harsh smells.

Great deal and good product

Working out great

Fast shipping and unopened

Use this instead of the more expensive brand, works great! Wish it came with a scooper

Would buy again

Works great. Can't say a whole lot about chlorine :-)

We bought the outdoor blow up hot tub. Which is absolutely amazing, bought it on Amazon. Get it!!!! I use chlorine and this tub of chlorine is a great price. This tub of chlorine is hard to open which is a good thing. You don’t need a lot for the hot tub so this lasts about 8 months I believe. Possibly more I’ll double check. With the hot tub that we use at least 3 times a week….we put a very small amount in every 3/5 days depending on what your test strip says. Test strips we bought on Amazon as well. I test every time before going in or if not used for a few days. Because you do not want your water to go green. If you monitor the water and prevent it from going green than this will last a long time. If it does happen to go green. You will need maybe a 1/4 cup day 1. If still Green Day 2, 1 more 1/4 cup. Day 3 should be green. You don’t want to use too much otherwise it’ll be over chlorinated for several days and you can’t go in. So a little bit a time.