Robelle 4-Pounds Premium Chlorine Stabilizer and Conditioner, Concentrated Cyanuric Acid for Pools, Pool Stabilizer, Helps Chlorine Last Longer

Works great

Great value compared to others, but this stuff is much slower to dissolve than others.

Works as intended. It takes a while to dissolve. I put it in socks inside skimmer and by the water inlet in pool. My pool is 20'X40'. So I had to buy 2 of these to raise the CYA so my Chlorine would stabilize and last.Not a fast solution though. It takes a while to dissolve. I. found the old sock method to be the best way to apply.

Not sure why there are many reviews saying their product won't dissolve. Maybe their ph is off. But I put 2.5 lbs of this In a sock and tied a knot at the end, then put it in my skimmer basket overnight, being sure not to block the whole bottom of the basket. Ran the filter overnight and by 11am the next morning there wasn't a single granule left in the sock. No problems here!

Since this is my first full season with my above ground pool, there was a learning curve with balancing the water quality. After the perfect storm of the pump running slow and several record hot days, my water quality plummeted and the water had green algae then went super cloudy. I couldn’t figure out why my free chlorine kept registering zero. Well, after sone research I realized the CY really matters! After adding the set up dose of this product, my CY rose and I am finally registering free chlorine and at the desired level—and my pool is crystal clear and clean again! I am regular dosing now and I will never be without this product in my pool shed!

Works as well as Suncoast stabilizer

This stabilizer works amazing, if you keep your pool maintained with chlorine in the skimmer and your chemical levels are within range, this stabilizer will help you keep it there long term!

Excellent product...!!! but the price is to hgh the last time i buy...!!!

You need to use a lot of product for a large pool. It takes a long time to dissolve. I’d look for a liquid product next time. Does it’s job just painful getting it into the pool.

Have had this sitting in a bucket of water for 6 weeks and it hasn’t dissolved at all. Kind of works still as I just put the water from the bucket into the pool to raise cya, but would not recommend

Just use chlorine...and run your pump with fresh filter