Rated 4.8 (2,400+)
PoolNinja™ Pool Fountain
Drops pool water temperature 6 to 15 degrees, no AC or chiller needed
Screws onto your existing return inlet, no wiring, no tools, no drilling
Adjustable valve circulates water around the pool and controls the flow
365-Day 1-for-1 Replacement Warranty
3-5 Day USA Shipping
Elena K.
Our pool sits in full sun all day and by the afternoon the water felt like a hot tub. I took off the return cap, screwed this on, turned the pump back on, and within a day the water was noticeably cooler and actually refreshing again. On top of that the circulation setting keeps the water moving around the whole pool so it stays cleaner, and the sound of the waterfall is so relaxing. Took me about two minutes, no tools, no wiring, nothing.
Why People Choose PoolNinja™
A pool sitting in direct sun heats up until the water feels like a warm bath, and still water pushed out in a straight line just sits there getting dirty. A separate chiller is expensive and a floating fountain does nothing for the heat. PoolNinja™ cools the water by 6 to 15 degrees and circulates it around the whole pool from one fountain that screws onto the return inlet you already have, so you get a cooler, cleaner, better-looking pool in seconds, with no wiring, no drilling, and no extra pump.
Why People Choose PoolNinja™
A pool sitting in direct sun heats up until the water feels like a warm bath, and still water pushed out in a straight line just sits there getting dirty. A separate chiller is expensive and a floating fountain does nothing for the heat. PoolNinja™ cools the water by 6 to 15 degrees and circulates it around the whole pool from one fountain that screws onto the return inlet you already have, so you get a cooler, cleaner, better-looking pool in seconds, with no wiring, no drilling, and no extra pump.
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PoolNinja™
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Pool Chiller
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Cools Water And Circulates It In One Device
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Screws On, No Wiring Or Drilling
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Uses Your Existing Pool Pump
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Adjustable Flow, Direction And Circulation
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Helps Keep The Pool Cleaner
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90-Day Money-Back Guarantee
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Built To Cool Your Pool
Built To Cool Your Pool
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Felt their pool water cool down without a chiller or AC
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Installed it themselves in under two minutes, no tools
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Said the circulation kept their pool noticeably cleaner
Cool And Circulate Your Pool In Seconds
With PoolNinja™, a pool that heats up like bath water in the sun and water that just sits there getting dirty stops being something you put up with.
- Two spray heads fan the water into the air so it cools before it falls back in, dropping your pool temperature by 6 to 15 degrees with no chiller and no AC.
- It screws straight onto any standard return inlet, so there is no wiring, no drilling, and no extra pump, just take off the return cap and screw this on.
- An adjustable valve controls the flow and lets you circulate water around the whole pool instead of a straight line, which helps keep it cleaner.
- Spray heads adjust for cross spray or disperse spray and angle down on windy days, all powered by the pump you already have.
Meet PoolNinja™
Cooler Than A Pool In The Sun
Stop choosing between a pool that looks nice and one that actually stays cool and clean. Two spray heads fan the water into the air so it cools before it falls back in, while the adjustable valve circulates it around the whole pool, so you get cooler, cleaner water from one fountain that screws onto your existing return inlet in seconds, with no wiring, no drilling, and no expensive chiller running in the background.
How It Works
1
Take Off The Return Cap
Turn off your pump and close the outlet valve, then take the cap off your pool return inlet. No tools, no wiring, no drilling needed.
2
Screw On PoolNinja™
Screw PoolNinja™ straight onto the same return inlet using the included adapter. Turn your pump back on and the waterfall starts right away.
3
Set Flow And Direction
Use the valve to control the water pressure and circulation, then aim the two spray heads for cross or disperse spray. Cooler and cleaner in seconds.
More than a fountain, it is a pool cooler and a circulation pump working from one return inlet.
Two spray heads fan the water into the air to cool it, while an adjustable valve circulates it around the whole pool at the same time, something a floating fountain or a straight return jet simply can't do from a single inlet.
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Cools Water And Circulates It
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Screws On, No Wiring
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Uses Your Existing Pump
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Adjustable Flow And Direction
Customer Reviews
Real reviews from people cooling their pool water and circulating it, just by screwing on a fountain
Frequently Asked Questions
Do you ship internationally?
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Yes! We ship worldwide. Orders over $100 qualify for free shipping, while smaller orders will have a shipping fee calculated at checkout.
We also offer hassle free returns from anywhere in the world within 30 days, no questions asked. Our goal is to make sure you are completely happy with your purchase and confident shopping with us again.
How long will it take to receive my order?
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Delivery times depend on your location:
- Domestic orders: typically arrive within 3 to 10 business days
- International orders: usually arrive within 7 to 13 business days
Once your order ships, you will receive a tracking link by email so you can follow its progress every step of the way.
Where is my order?
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You can easily track your order by visiting our Track Your Order page using the tracking link provided in your confirmation email.
PoolNinja™ Questions
Who is PoolNinja™ best for?
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Anyone whose pool sits in the sun and heats up like bath water, or whose water just sits still and gets dirty, and who does not want to pay for an expensive chiller or run a separate pump. It is a favorite for above-ground and in-ground pools alike, for anyone who wants cooler water on hot days, better circulation for a cleaner pool, and a relaxing waterfall look and sound.
It screws onto any standard pool return inlet and uses the pump you already have, and the included adapters plus the adjustable valve make it simple to set up on almost any pool.
Pro tip: Open the valve to circulate water around the circumference of the pool for a cleaner result, and angle the spray heads down on windy days so the spray stays in the pool.
How does it cool the pool without a chiller?
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The pump pushes water up through the two spray heads, which fan it out into the air as fine streams. As that water rises and falls, air passes over it and evaporation pulls heat out, so the water cools before it lands back in the pool, typically dropping the temperature by 6 to 15 degrees on hot days. A pool sitting in direct sun heats up fast, and this constant spray and circulation is what keeps the water from turning into a warm bath, without a chiller and without running your AC.
How is this different from a plain return jet or a floating fountain?
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A plain return jet pushes water out in a straight line that just sits there doing nothing, and a floating fountain looks nice but does not cool or circulate the water. PoolNinja™ screws onto the return inlet you already have and uses your existing pump to cool the water, circulate it around the whole pool, and create the waterfall, all at once. The adjustable valve lets you dial the flow and send water around the circumference of the pool, which also helps keep it cleaner. That is the difference between water that sits still and water that stays cool and moving.
What is included and how does it install?
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You get the dual-spray-head pool fountain with two adjustable spray heads for cross or disperse spray, an adjustable flow and circulation valve, and the adapters for standard return inlets. Installation takes about two minutes: turn off the pump, close the outlet valve, take the cap off your return inlet, screw PoolNinja™ onto the same inlet, then turn the pump back on. There is nothing to wire, nothing to drill, and no separate pump to buy.
Will it fit my pool?
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Yes for most standard setups. PoolNinja™ works with in-ground and above-ground pools and comes with adapters that fit standard return inlets, including Intex and Bestway pools. It is not designed for Summerwaves pools or for threadless, non-standard, or non-specified brand return inlets. If you are unsure, check that your return inlet is a standard threaded fitting, and our US based support team can help confirm compatibility before you order.