
AquaSport 14AX
14′ 6″ · jet current
9′ 9″ of open water

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The maker doesn't publish the open water on the V174K. Seats, steps and the current housing take their share of the 14′ 6″, so ask the dealer for it.
Marquis doesn't say whether air is mixed in or whether the pumps run only the current, so ask the dealer. Marquis rates the flow at 750 gpm, its own figure with no common test behind it.
How currents compare →Lap swimmers like 78 to 82°F and a hot tub runs 100 to 104, so you pick a compromise or change the setting and wait.
Is dual temperature worth it →At the dealer, stand where you’d swim and ask where the water line would come on you.
No California listing we could match
California lists what a spa draws on standby, with the cover on. We found no listing that matches this model. Two Marquis swim spas have one, from 323 to 349 W.
What they like
A strong jetted current (older ATV-17 Kona)
A shopper who wet-tested several swim spas in 2019 found the Kona's current stronger than a Cal Spas Commander's and a TidalFit Pro EP-15's, though well short of a propeller-driven Endless Pools; a Hydropool AquaSport they tried later seemed to them about as good or a little better. This was the discontinued ATV-17 Kona, not today's V174K.
Build judged sturdier than a steel-framed rival (older ATV)
In the same 2019 thread a participant who appeared to work in the trade praised the ATV's sealed bottom and fiberglass-gusset frame, and the shopper, after inspecting a Hydropool AquaSport, agreed the Marquis looked better built. Again the older polymer-shell ATV, not a current model.
These findings cover the Marquis swim spa line; each names the models it applies to.
Doesn’t have: cover lifter.
Marquis’s own documents give two answers. Check yours against the quote before you sign.
Flow (maker's claim)
750 gpm
marquisspas.com ↗1,000 gpm
thepoolshoppe.ca ↗Swim jets
Ten things that decide whether a swim spa works for you and lasts, answered for Marquis’s swim spas. Tap any for the detail.
Marquis makes every current with its Whitewater-4 jets: three on one 2-speed 160 gpm pump in the V150P, four rated 360 gpm in the V150W, and six in each V174, with the Kona's 'Plus' jets rated up to 750 gpm. It says the V150 current suits recreational swimmers and suggests a tether for swim-in-place training. It doesn't say whether air is mixed in, how many speed steps there are or how wide the current is.
What this means, and how to check it →marquisspas.com ↗marquisspas.com ↗
The V150P and V150W are 150 in long with 43 in of water; the V174S and V174K are 174 in (14.5 ft) long with 48 in. Marquis doesn't publish how long the open lane is from the jets to the first seat. The V150P gives up swim room for eight seats, which Marquis sells as a party spa; the V150W and both V174s have four seats and an open workout area.
What this means, and how to check it →marquisspas.com ↗marquisspas.com ↗
Marquis' swim spa pages don't say what the shell is made of, what's bonded behind it, or what frame and base carry it. Trade press reported in 2023 that Marquis would switch its swim spas from polymer resin to acrylic when production moved to Las Vegas, and the V150 warranty covers the 'fiber glass structure' against leaks for only five years.
What this means, and how to check it →marquisspas.com ↗marquisspas.com ↗
Marquis publishes filled weights and, for the V150s, a single 240 V, 50 A hookup. For the V174 it prints only '50/30A (60Hz)', which could mean two circuits or a choice of breaker, and gives no voltage. Marquis' own pad rules would be in its current owner's manual, which we couldn't access; the only swim spa pad advice we found (a 6 to 8 in concrete slab) is on an unverified copy of the old ATV site. The V150 warranty is void on any support surface other than the one Marquis' instructions specify.
What this means, and how to check it →marquisspas.com ↗marquisspas.com ↗
Every Marquis swim spa lists full-foam insulation. California's database holds 2020 listings for the V150 at 323 W and the V150W at 349 W, against limits of 420 W and 465 W, both tested with a cover called 'V150 2LB'. We found no listing for the V174S or V174K, and no Marquis swim spa page mentions a heat pump.
What this means, and how to check it →marquisspas.com ↗cacertappliances.energy.ca.gov ↗
Marquis calls the V150P and V150W hybrids of a hot tub and a swim spa, but in one vessel, so soakers and swimmers share one temperature. The V174s are single-zone too. If you want a separate hot side, Marquis doesn't make one.
What this means, and how to check it →marquisspas.com ↗marquisspas.com ↗
The V150 warranty says the owner must give the technician unencumbered access to the equipment and leaves removal and replacement costs to the owner. All four models are full foam, so a hidden leak means cutting foam away. The V174's topside is Balboa's SpaTouch 3 touchscreen, but Marquis doesn't name its pumps, heater or pack.
What this means, and how to check it →marquisspas.com ↗marquisspas.com ↗
The V150 card covers the 'fiber glass structure' against leaks for 5 years, the surface for 2, plumbing and equipment for 3 and the skirt for 1, for the original buyer only. The owner pays freight and removal or replacement labor, and the responding dealer may add service and travel fees. Marquis' warranty page has no card for the V174S or V174K, while its own Vector21 hot tubs get 10 years on structure. The card is a March 2021 PDF, and Marquis has since lengthened the terms of its Elite hot tub card, issued the same day, so ask for the current swim spa terms in writing.
What this means, and how to check it →marquisspas.com ↗marquisspas.com ↗
None of the four swim spa pages lists a cover as standard, and all four offer two Cover Companion lifters as an option. The V150s' energy listings were tested with a cover called 'V150 2LB', and the V150 warranty drops surface coverage if you use a cover that isn't a Marquis DuraCover. Marquis' cover page describes UL-approved locking DuraCovers with a one-year warranty, written for hot tubs.
What this means, and how to check it →marquisspas.com ↗marquisspas.com ↗
Marquis says its swim spas are made in Las Vegas, Nevada, with imported and domestic components; production moved there from Independence, Oregon in 2023, into the plant its sister brand Artesian uses. Only Marquis or its agent may do warranty work, the responding dealer may add travel fees, and Marquis says it finds another dealer or service company if yours closes. It publishes no dealer count.
What this means, and how to check it →marquisspas.com ↗marquisspas.com ↗
What Marquis leads with, where it covers the V174K, and what the documents show.
What they sayReps sell the current on flow: Whitewater-4 swim jets rated 160 gpm in total on the V150P, 360 gpm on the V150W and up to 750 gpm from the Kona's six jets, the jet family Marquis used in its ATV training vessels.
What the documents showThe jets and pumps are real, but every gpm figure is Marquis' own rating with no test method, and a flow number says nothing about how wide or smooth the current is.
Who else does itMost swim spas at this price make their current with jets, among them Master Spas' H2X and Hydropool's Aquatic models. The Whitewater-4 name is Marquis' own.
Applies to: V150P, V150W, V174S, V174K
The catch
Flow figures are ratings, not measurements. Marquis gives no test for any swim gpm figure. The V150P's 160 gpm is exactly its one swim pump's rating, and the Kona page prints 750 gpm beside a liters figure (3,785 L/min) that works out to 1,000 gpm, the all-pumps total a dealer quotes. Hold your hand across the current on a running display before trusting any of them.
What they sayOnly the V174K Kona gets Whitewater-4 Plus jets; Marquis says an entrainment port lifts each jet from 100 to 125 gpm, for up to 750 gpm across six jets.
What the documents showThe 25% gain per jet comes with no test. Dealers list two 360 gpm swim pumps on the Kona against two 240 gpm on the V174S; if those dealer lists are right, pump size accounts for much of the gap between the two models.
Who else does itMarquis calls it a unique feature, and none of the other makers' pages we read name an entrainment port on their swim jets.
Applies to: V174K
What they sayMarquis says its swim spas are built by craftspeople in Las Vegas from imported and domestic components, by a brand founded in 1980.
What the documents showUS-built is true, and Marquis qualifies it with imported components. But the owner and the plant have changed since 2021, and trade press reported a switch in swim spa shell material that Marquis' own pages don't confirm.
Who else does itMany swim spa makers build in the US, including Master Spas in Indiana, PDC in Pennsylvania and sister brand Artesian in the same Las Vegas plant.
Applies to: V150P, V150W, V174S, V174K
What they sayEvery Marquis swim spa lists full-foam insulation, which reps pitch as the way to keep a big body of water warm for less.
What the documents showFull foam is standard on all four, and the V150s' California listings sit about a quarter under the legal limit. But those tests date from 2020, before the move to Las Vegas, and the V174 has no listing.
Who else does itFull foam is common on swim spas; Master Spas lists it on its Michael Phelps models, for example.
Applies to: V150P, V150W, V174S, V174K
What they sayMarquis quotes water depth, not just cabinet height: 43 in on the V150s and 48 inches in the 56-inch V174s.
What the documents showThe depths are printed on each model's spec table as water depth, separate from cabinet height.
Who else does itMany makers print only cabinet height; Endless Pools is one that publishes a maximum water depth (46 in on its E500).
Applies to: V150P, V150W, V174S, V174K
Marquis publishes no warranty card for the V174K. Ask for it in writing before you sign, and read who pays labor, travel and removal. What to read on the card →

14′ 6″ · jet current
9′ 9″ of open water

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