Pentair GW9500 Kreepy Krauly Great White Inground Pool Clean

The Verdict

The Suction-Side Workhorse That Actually Earns Its Name

Most pool cleaners fall into two camps: expensive robotic models that do everything except pour you a drink, and cheap suction-side afterthoughts that get stuck on the first step. The Pentair GW9500 Kreepy Krauly Great White sits firmly in a third category — the old-school, proven, no-booster-pump-required suction cleaner that just keeps working. And with 215 Amazon ratings averaging 4.3 stars, it’s clear plenty of pool owners have put it to the test.

What You Actually Get

The box includes the Great White cleaner head, the full hose assembly with swivel adapters, and a flow gauge to verify your pump is delivering enough suction. The unit measures roughly 14 inches wide, which gives it a generous cleaning path compared to narrower models. There’s no separate debris bag — this is a direct-to-filter design, meaning everything it picks up goes straight into your pool’s skimmer or main drain filter system.

You’ll need to connect it to your pool’s suction line and adjust the flow gauge to the recommended setting. The manual is decent, but the real-world install is straightforward: attach hose sections, connect to skimmer, drop it in the deep end, and let it wander.

Real-World Performance

Here’s where the Great White earns its reputation. The self-propelled design uses the Venturi effect to generate suction while also driving the wheels — no booster pump required. In practice, that means it crawls across pool floors and climbs walls with surprising authority. The wide cleaning path picks up leaves, acorns, and sand without leaving the zig-zag trails you see with cheaper units.

One buyer summed it up: “This thing climbs walls like a champ and doesn’t get stuck on the main drain. I’ve had it for two seasons and it’s still going strong.” Another noted: “It picks up things my old cleaner left behind — pine needles, small twigs, even a bottle cap.”

The 45-foot hose is sufficient for most residential pools, and the swivel connections prevent tangling. It also handles steps and shallow ends far better than budget alternatives, which is a common pain point.

Where It Falls Short

Let’s be straightforward about the downsides. First, because there’s no debris bag, everything the cleaner picks up goes directly to your pool filter. If you have a sand filter, you’ll be backwashing more often. Cartridge filters will need more frequent cleaning. This isn’t a dealbreaker, but it’s a real tradeoff versus robotic cleaners with their own filtration.

Second, the Great White struggles with fine silt and algae dust, particularly on textured or pebble-finish pool surfaces. It’ll pick up the big stuff, but you might need to brush those areas manually. One reviewer noted: “It leaves a very thin film of fine dirt on the pebble finish — I have to brush the floor once a week to keep it looking clean.”

Finally, the hose can kink if you don’t lay it out straight during installation. It’s a minor annoyance, but worth mentioning — take the time to uncoil the hose in the sun before connecting it.

Who Should Buy This

The Great White is ideal for pool owners who want reliable, low-maintenance cleaning without dropping $800+ on a robotic unit. It’s perfect for:

• Mid-size to large inground pools (up to 50 feet) where a wide cleaning path saves time
• Pool owners with leaf/twig debris who need something that won’t clog
• Budget-conscious buyers who already have a decent pool pump and don’t want booster pump installation costs

Skip it if you have a fine silt problem, a textured finish that requires aggressive scrubbing, or if you’d rather not clean your filter more often.

FAQ

Q: Does this work with a variable-speed pump? A: Yes, but you’ll need to run the pump at higher RPM (typically 2500-3000) to generate enough suction. The flow gauge helps you dial it in.

Q: How long does the hose need to be? A: The included 45-foot hose covers most pools. For longer pools, you can purchase additional hose sections from Pentair.

Q: Will it climb walls? A: Yes, it climbs and descends walls effectively, including vinyl and fiberglass surfaces. It won’t clean the waterline, though — that’s still a manual job.

The Verdict

Buy it if: You want a dependable suction-side cleaner that handles heavy debris, climbs walls, and won’t break the bank. It’s a proven design that pool pros have trusted for years.

Skip it if: You have fine silt issues, want hands-off filter maintenance, or prefer a robotic cleaner that operates independently of your pump.

Rating: 4.2/5 — A solid, honest workhorse with a few known tradeoffs. It’s not perfect, but for the price, it’s one of the best suction-side values on the market.

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.