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American Whirlpool swim spas

MAAX-built swim spas on a galvanized steel frame with a lifetime frame warranty, lined instead of foam-filled, with an anti-turbulence jet current on the M models and a separately controlled hot tub end on the 18-foot DM8.

9 models, 12′ 2″ to 18′ 2″ long.

Updated By the HotTubFinder research desk

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Length
12′ 2″–18′ 2″
Water
1,127–2,100gal
Current
Jets
Hot tub side
1 of 9
Price
On request
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PowerPool9 models · 12′ 2″ to 18′ 2″ · jets

What owners report

Themes from owner reviews and forum threads, each linked to where it was posted. People with a problem are the most likely to post.

What owners praise0

None found yet.

What owners complain about1

Weeks-long wait for a part on an older MAAX swim spaOne owner of a MAAX swim spa more than ten years old complained that a leaking pump union left the spa…1 source

One owner of a MAAX swim spa more than ten years old complained that a leaking pump union left the spa waiting several weeks because the dealer had to order the part from the East Coast. MAAX replied that parts ship within two weeks, that the local dealer does the repair, and offered its customer care line to speed things up. It's a single complaint about an older MAAX-branded spa, and we could read it only through a search engine's summary of the BBB page.

Owner reports as of September 2026.

What American Whirlpool is known for

What salespeople lead with, checked against American Whirlpool’s own documents and public records. Of these six, one holds up and five are partly true.

Partly trueMAAX Force anti-turbulence currentSalespeople lead with MAAX Force: two or three swim jets fed through a manifold with 'Anti-Turbulence'…The catch: Four of the nine models don't get it

The pitchSalespeople lead with MAAX Force: two or three swim jets fed through a manifold with 'Anti-Turbulence' technology, which the maker says gives a powerful, smooth, fully adjustable stream across a 30-inch lane and beats propellers and paddlewheels.

Offered on: DM8, MB4, ML4, MX5, MX6

Our takeThe jets, their counts and the 30-inch lane are published. The claim of beating propellers comes with no flow figure or test, the pumps also feed the seats through a diverter valve, and air can be let into the stream (the manual says to close it for swimming).

Who else has it: Multi-jet swim currents with a brand name are the norm: Master Spas sells six airless AquaSpeed VSP jets on its Challenger, Endless Pools an airless four-jet SwimCross, Hydropool its V-Twin jets.

The catchFour of the nine models don't get it. The RF2, RB4 and RL4 use four 'Turbo' or 'Power' swim jets on two pumps, and the RL5 two unnamed swim jets on what its spec sheet lists as one pump. No stream width is published for any of them, and the maker publishes no flow number for any of its currents.

Partly trueGalvanized steel frame, lifetime frame warrantyEvery PowerPool sits on a zinc-coated steel frame and a sealed ABS bottom pan that can't rot, and the frame…The catch: The shell gets 5 years, not life

The pitchEvery PowerPool sits on a zinc-coated steel frame and a sealed ABS bottom pan that can't rot, and the frame is warranted for as long as you own the spa. Dealers add that it's 'appliance grade' and can be restored to factory spec in your yard.

Our takeThe steel frame, ABS pan and lifetime frame line are all in maker documents. But the maker publishes no gauge, and the lifetime promise covers the frame, not the shell that holds the water.

Who else has it: Steel frames aren't unusual among the swim spa brands we researched: Endless Pools' E-Series (14-gauge galvanized), Jacuzzi's J-16 PowerPro (galvanized), Hydropool (steel) and Wellis (stainless steel) use them, while Master Spas, Cal Spas and Artesian use wood and Bullfrog a molded composite. Vita Spa's twin models share the MAAX frame.

The catchThe shell gets 5 years, not life. The same card covers the fiberglass vessel against water loss, its surface, and the equipment, plumbing and labor for only 5 years, and the side panels for 2. All coverage ends if the spa is sold, and if MAAX replaces the spa, removing the old one and installing the new one are the owner's cost.

Partly trueFew othersNorthern Exposure insulation instead of foamInstead of spray foam, the cabinet walls, floor and cover are lined with copper-backed recycled fiber and…The catch: Every model passes California's limit by 1 watt

The pitchInstead of spray foam, the cabinet walls, floor and cover are lined with copper-backed recycled fiber and wrapped in 3M Thinsulate to hold pump heat, which also leaves the plumbing reachable for repairs.

Our takeThe service-access benefit is real: no foam to cut through. The efficiency claim has no R-value or test behind it, and the manual warns the heat-capturing design can push the water above its set temperature in warm weather ('thermal creep').

Who else has it: The copper, recycled-fiber and Thinsulate stack is MAAX's patented design (US 9,938,740), used by MAAX's two brands, American Whirlpool and Vita Spa. Other makers mostly fill with foam or use their own blanket systems.

The catchEvery model passes California's limit by 1 watt. Each American Whirlpool swim spa's California listing reports standby power exactly 1 watt under the most its size is allowed (RL4: 541 of 542 W; MX5: 655 of 656 W). In 2018 MAAX Spas settled with California for $152,500 over spas offered for sale there in 2015-2017 without testing before certification.

Holds upSwim spa and separate hot tub in one: the DM8The 18-foot DM8 puts a 5-seat hot tub behind a wall at one end of a MAAX Force swim spa, and the hot tub end…

The pitchThe 18-foot DM8 puts a 5-seat hot tub behind a wall at one end of a MAAX Force swim spa, and the hot tub end can be controlled separately so others can soak while you swim.

Offered on: DM8

Our takeThe separate spa end, its 300 gallons and 5 seats, its own pump and its own power supply are all in maker documents.

Who else has it: Dual-zone swim spas are widely sold: Jacuzzi's J-19DT, Endless Pools' E2000, PDC's TSX219, Hydropool's DTAX models and Master Spas' dual-temperature H2X models.

Show 2 more selling points
Partly trueExtra-deep models for running and tall swimmersThe 15-foot MX5 and RL5 and the 16-foot MX6 stand 60 inches tall with 56 inches of listed depth; MAAX pitched…

The pitchThe 15-foot MX5 and RL5 and the 16-foot MX6 stand 60 inches tall with 56 inches of listed depth; MAAX pitched its 16-foot model as deep enough to run in and roomier for taller swimmers.

Offered on: MX5, MX6, RL5

Our takeThe 60-inch cabinets and 56-inch 'Depth' are published, but the maker doesn't say whether that is water depth, and it publishes no open swim length.

Who else has it: Sixty-inch 'deep' swim spas are offered by others too, such as Master Spas' Trainer 15D and Bullfrog's S180XD.

Partly trueBuilt-in swim trainerThe topside runs a swim trainer with preset and custom drills, warm-up and cool-down, and lights that change…

The pitchThe topside runs a swim trainer with preset and custom drills, warm-up and cool-down, and lights that change color with the current's intensity; MAAX pitched programmable speed levels and a light system that signals speed changes when it launched its 16-foot model.

Our takeThe drills, timers and light feedback are documented in the Gecko in.k1000 section of the owner's manual. The number of speed steps isn't published: the manual says it depends on the spa's configuration, and the listed pumps are two-speed except the MX5's and MX6's two single-speed 2.5 hp pumps.

Who else has it: Programmable currents are standard at this price: Endless Pools publishes 31 pace settings on its E500 and Hydropool ten speeds on its Aquatic models.

What rivals and critics say2
  • A forum member with no stated trade affiliation said in a 2018 hot tub thread that MAAX's steel frame metal is thin enough to twist and bend, and that they had seen it rust where pieces connect. Our check: Nobody in that thread reported a failed frame, and no owner report or photo turned up. MAAX publishes no gauge, so the claim can't be confirmed or ruled out; the frame's lifetime warranty ends if the spa is sold.
  • A retailer describes the RL4's Northern Exposure insulation as 'full-foam'. Our check: The maker says the opposite: its BlueMAAX lining replaces the urethane foam used in foam-filled tubs.
American Whirlpool on the ten things we checkThe current, room to swim, the frame, site prep, service and the warranty

How American Whirlpool stands

The buying guide

The ten checks from our swim spa buying guide, answered from what American Whirlpool publishes and from public filings. Tap a row for the detail.

  • 3 yes
  • 6 partly
  • 0 no
  • 1 not published
Swim currentJets, not a propeller: 2-3 MAAX Force jets on the M models and DM8, 2-4 'Turbo'…Partly

The MB4, ML4, MX5, MX6 and DM8 use MAAX Force jets, which the maker says make a smooth, variable stream about 30 inches wide. The RB4, RL4 and RF2 use four 'Turbo' or 'Power' swim jets and the RL5 two unnamed jets, with no width published. Air can be added through air controls, and the manual says to close them while swimming; no flow figure or number of speed steps is published.

Applies to: All nine models; MAAX Force on DM8, MB4, ML4, MX5 and MX6 only.

What this means, and how to check it →americanwhirlpool.com ↗bullgrillsandspas.com ↗

Room to swimDepth is published (46 to 56 in); American Whirlpool doesn't publish the open swim…Partly

Outside lengths run from 146 inches (RF2) to 218 inches (DM8), and each page lists a 'Depth' of 46 to 56 inches, deepest on the 60-inch-tall MX5, MX6 and RL5, without saying whether that's water depth. How much of each spa is open lane between the jets and the seats isn't stated; on the DM8 the separate hot tub end takes part of the 18 feet.

Applies to: All nine models.

What this means, and how to check it →americanwhirlpool.com ↗americanwhirlpool.com ↗

Frame and shellGalvanized steel frame and ABS bottom pan on every model; the frame is warranted…Yes

Every product page lists a steel sub-structure, the PowerPool warranty card calls it a zinc-coated steel structural support system with a lifetime warranty, and the brochure says every PowerPool has an ABS bottom pan. The shell itself, which the card calls a 'fiberglass vessel structure', is warranted only 5 years against water loss, and no steel gauge is published.

Applies to: All nine models.

What this means, and how to check it →res.cloudinary.com ↗bullgrillsandspas.com ↗

Site prepCrane placement, a concrete pad 12 inches bigger than the spa all round, and a…Partly

The manual recommends setting a swim spa by crane with an 8-foot spreader bar, on a concrete pad at least 12 inches wider and longer than the spa, with the whole frame perimeter evenly supported; the product pages list full weights of 10,955 to 19,730 lb (the 2025 brochure gives the MX5 19,930). It gives no pad thickness or reinforcement, and the warranty treats an uneven or insufficient foundation as abuse. Minimum breakers run from 30 A (RL5) to 60 A (MX5, MX6), and the DM8 needs separate supplies for each end.

Applies to: All nine models.

What this means, and how to check it →americanwhirlpool.com ↗americanwhirlpool.com ↗

Running costPasses California's standby limit on every model, but only by 1 wattPartly

Northern Exposure lines the cabinet walls, floor and cover with copper-backed recycled fiber and Thinsulate instead of filling it with foam, and the maker publishes no R-value. Every American Whirlpool swim spa's California listing sits exactly 1 W under its limit (the RL4 at 541 of 542 W), and no heat pump is listed for any model. The manual warns the water can drift above its set temperature in warm weather ('thermal creep'), which it puts down to the heat-capturing design, and says a swim spa takes 18 to 24 hours to heat up at first on a 230 V hookup.

Applies to: All nine models; the DM8's listed figure covers its spa end only.

What this means, and how to check it →cacertappliances.energy.ca.gov ↗americanwhirlpool.com ↗

Dual zoneOnly the DM8: an 18-foot swim spa with a walled-off 5-seat hot tub that's…Yes

The DM8 splits 1,950 gallons into a 1,650-gallon swim end with 3 seats and a 300-gallon, 5-seat spa end with its own pump. The maker says the hot tub end is controlled separately, and each end needs its own 240 V supply. The other eight models are one body of water with 3 to 9 seats.

Applies to: DM8 only.

What this means, and how to check it →americanwhirlpool.com ↗bullgrillsandspas.com ↗

Service accessNo foam to dig through and ordinary pumps, but the spa must stay reachable on all…Yes

Northern Exposure lines the cabinet instead of filling it, and the maker's construction page says that lets its hot tubs and spas be serviced back to factory specifications in your yard; the brochure says PowerPools are built to the same standards as its hot tubs. The current runs on standard 56-frame pumps rather than a hydraulic drive. The manual requires service access on all four sides and a drained, accessible vault for below-grade installs, and the warranty requires every side panel to come off without obstruction.

Applies to: All nine models.

What this means, and how to check it →americanwhirlpool.com ↗americanwhirlpool.com ↗

Warranty termsLifetime on the steel frame, but only 5 years on the shell, surface, equipment and…Partly

The PowerPool/xStream card gives the zinc-coated frame a lifetime warranty; 5 years on vessel structure (water loss only), surface, equipment, plumbing and labor; 2 years on side panels and jet inserts; and 90 days on headrests and diverter valves. It ends if the spa is sold, excludes the cover, lets the servicer bill travel and reasonable labor, and leaves removal and reinstallation of a replacement spa to you. American Whirlpool publishes no terms itself; the card (Rev 05/2018) is posted on MAAX's Vita Spa site.

Applies to: All nine models (card covers the PowerPool line generally).

What this means, and how to check it →res.cloudinary.com ↗vitaspa.com ↗

Cover and lifterAmerican Whirlpool doesn't publish this. Ask the dealerNot published

The brochure mentions a locking insulated cover and the manual a foam-insulated WeatherShield cover with tie-downs, but no page says whether a cover or lifter comes with the spa, and the warranty excludes the cover. California's listings name a model-specific tested cover (for example RL4-4/3), which is the one to ask for.

Applies to: All nine models.

What this means, and how to check it →americanwhirlpool.com ↗americanwhirlpool.com ↗

Service and originServiced only through dealers, with no public dealer list; trade press reported in…Partly

Warranty work goes through an authorized MAAX Spas dealer or servicer, and MAAX must pre-authorize in-field service where there's no dealer; the maker's 'Find a Store' page is a contact form, not a list. The maker doesn't say where the swim spas are built. Trade press reported in 2021 that a new swim-spa-only plant in Ottumwa, Iowa would build the PowerPool line, with hot tubs staying in Chandler, Arizona; no later confirmation was found.

Applies to: All nine models.

What this means, and how to check it →res.cloudinary.com ↗americanwhirlpool.com ↗

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