Cloroxx 59032CLX Sink to Clear Flocculent, 1-Quart
✅ PROS
- Clears severely cloudy or green pools in 24-48 hours when used correctly with a vacuum-to-waste setting
- Concentrated formula — 1 quart treats up to 20,000 gallons, making it economical per treatment
- Works on stubborn particles (dirt, pollen, dead algae) that standard clarifiers can't settle
❌ CONS
- Requires manual vacuuming to waste afterward — no shortcuts if you want results
- Not a substitute for proper sanitizer levels; balances pH and chlorine first or it won't work
- Can cloud an already-clear pool if overdosed; measure carefully
The Verdict
If your pool looks like pea soup or a glass of milk, you don’t need another clarifier — you need a flocculant. The Cloroxx 59032CLX Sink to Clear is a different animal from the weekly maintenance products on the shelf. It’s the heavy artillery for pool recovery, and at 4.6 stars from 229 buyers, it’s clearly earning its keep. But it demands more from you than pouring and walking away.
What You Actually Get
The box contains one 1-quart bottle of concentrated flocculant. That’s it — no test strips, no measuring cup, no instructions booklet beyond the label. The math matters here: one quart treats up to 20,000 gallons of pool water. For context, a typical 15,000-gallon inground pool gets roughly 20 ounces per treatment, so you’ll get one full application plus a little left over for spot treatments. As shown in the product image, it’s an unassuming white bottle — the power is in the chemistry, not the packaging.
How It Performs in Real Use
Here’s the critical difference between this product and a standard clarifier: a clarifier makes particles small enough to be caught by your filter, while a flocculant makes them heavy enough to sink to the floor. That means you’re committing to a two-step process — pour, wait 24-48 hours, then vacuum the settled debris to waste.
Buyers who followed the process reported dramatic results. One reviewer wrote, “My pool was green and I couldn’t see the bottom step. After 36 hours, the water was crystal clear and the debris was sitting on the floor like a carpet. Vacuumed it out and it was like a new pool.” Another noted, “I tried clarifiers for two weeks with no luck. This cleared it overnight.”
The product works by binding suspended particles — dead algae, pollen, dirt, even metal oxides — into larger clumps that gravity pulls down. It’s particularly effective on the fine particles that make water look cloudy rather than just dirty. You’ll need your pump running for about 2 hours after adding it to distribute the chemical, then shut it off completely so the water goes still. That stillness is non-negotiable; if your pump cycles on, you’ll re-suspend everything you’re trying to settle.
What Buyers Consistently Praise
The recurring theme in positive reviews is that this product does what the label promises — even on neglected pools. The concentration is also a point of praise; users with larger pools appreciated that one bottle handled the job without needing to buy two. And it’s fast. Most reviewers saw visible clearing within 24 hours and full clarity by day two.
Where It Falls Short
The biggest complaint is the labor. This isn’t a set-and-forget product. You must vacuum the settled debris to waste, which means you’re sending water down the drain and adding fresh water afterward. If your pool has a sand filter without a multiport valve, you’ll need a separate pump or manual siphon — that’s extra equipment and effort.
The second issue is chemistry sensitivity. This flocculant only works if your pH is between 7.2 and 7.6 and your chlorine is in range. Several negative reviews show users pouring it into unbalanced water and getting zero results. That’s not a product failure; that’s a process failure. But the label doesn’t scream this at you, so it’s worth knowing going in.
Finally, overdosing is a real risk. More is not better here. Add too much and you’ll actually make the water cloudier — the floc binds to itself instead of the particles. Measure carefully.
Who Should Buy This
This is for the pool owner facing a genuinely cloudy pool — the kind where you can’t see the bottom drain, or you’re fighting an algae bloom that won’t quit. It’s also ideal for spring opening when the cover comes off to reveal murky water. If you’re already running a balanced pool and just want weekly maintenance, skip this and buy a standard clarifier instead. This is a rescue tool, not a routine one.
FAQ
Q: How long does it take to work? A: Most users see significant clearing in 24 hours, with full settling by 48 hours. The exact time depends on your water chemistry and particle load.
Q: Can I use this in a pool with a cartridge filter? A: Yes, but you’ll need to bypass the filter when vacuuming. Most cartridge systems don’t have a waste setting, so you’ll need a manual vacuum or siphon to remove the settled debris.
Q: Will this clear a green pool? A: Only if you’ve already killed the algae with chlorine first. This flocculant settles dead algae — it doesn’t kill living growth. Shock the pool, wait for the chlorine to drop to normal levels, then use this.
The Verdict: 4.6/5
Buy it if you’re facing a cloudy or green pool and you’re willing to put in the elbow grease for a lasting fix. It’s concentrated, effective, and cheaper per treatment than most clarifiers that won’t solve your problem anyway.
Skip it if you want a pour-and-forget solution, or if you can’t commit to vacuuming to waste afterward. This product rewards effort — it doesn’t replace it.
For a 1-quart bottle that costs less than a service call, the Cloroxx Sink to Clear flocculant is the right tool for the worst pool problems. Just follow the chemistry steps and give it the 48 hours it needs. Your reward is a pool that looks brand new.
Where to Buy
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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.