Experience the world's most effective swim-in-place current in the pool you already own. The Fastlane Swim™ retrofits into almost any existing pool, delivering a smooth, airless Hydrodrive™ current wider than your body and deeper than your stroke. A smarter path to elite aquatic fitness, without building a new pool.
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The Lowest Running Costs, Independently Tested
The cost of running a swim spa can be significant… unless you choose Hot Spring. We offer New Zealand’s most energy efficient swim spa, with running costs as little as $1 a day.
The Fastlane Swim™ is powered by a remotely located hydraulic power unit engineered for efficient, long-lasting performance. With a heavily insulated shell and cabinet that maintains your ideal swimming temperature year-round, running costs stay predictable and low. Backed by 45 years of Hot Spring® aquatic engineering, the Fastlane Swim™ is built to perform every day, in every season.
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What is a swimming machine?
The Fastlane Swim™ is a hydraulically powered swimming machine that brings the signature Hydrodrive™ current to almost any existing pool. Using a 16-inch propeller and multiple conditioning vanes, it delivers a smooth, laminar flow of water that is wider than your body and deeper than your stroke, free of the turbulence caused by air-injected competitor swim jets.
With 52 incremental speed settings and a top pace of 1:14 per 100 metres, the Fastlane Swim™ suits everyone from beginners finding their stroke to competitive swimmers and triathletes training at full pace. Even at maximum power, the experience mirrors the smooth, steady resistance of open-water swimming, right in the pool you already own.
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Swimming machine design
Every element of the Fastlane Swim™ has been crafted to deliver the ultimate swim-in-place experience. There is the signature Hydrodrive™ hydraulic propulsion system, the precision-engineered conditioning vanes that smooth and direct the laminar flow, and the remotely located power unit that keeps mains electricity well away from the water.
The Fastlane Swim™ delivers a highly customised swimming experience for every member of your household, from the gentlest resistance to support joint recovery and rehabilitation, to a current that challenges competitive swimmers at full pace. Simply adjust the speed across 52 incremental settings using the wireless remote and get swimming.
Best swimming machine placement
Where should you place your swimming machine? Unlike a traditional swimming pool the Fastlane Swim™ is designed to retrofit into almost any existing pool, with two mounting options to suit your pool's layout.
The deck-mount option fastens directly to the pool deck using a hanger bracket, with hydraulic hoses running above ground or concealed under a hose cover tray. The wall-mount option fastens to the pool wall with a bracket, routing hoses cleanly beneath the pool deck back to the remote power unit. Speak to your local Hot Spring® dealer for a site-specific installation plan.
What should I look for when buying a swimming machine?
Quality should be your primary focus when shopping for a swimming machine. Buying from an established brand, especially if it has a local dealership, can ensure that you always have access to the support you need to maximise the value and enjoyment you get from your swim spa. Other considerations include:
Does your existing pool have the right depth, clearance, and wall structure for a retrofit installation? Your local dealer can confirm Fastlane Swim™ compatibility at no obligation.
Where in your pool will the unit be mounted — deck or wall? Do you need hoses concealed beneath the deck or routed above ground?
What is your primary goal — elite lap training, low-impact rehabilitation, or shared family fitness? The Fastlane Swim™ adapts to every level and every goal in your household.
Are you investing in a system that will perform daily for years to come? The Fastlane Swim™ is built with commercial-grade hydraulic components backed by 45 years of Hot Spring® aquatic engineering.

Take the guesswork out of buying a Compact Spa. Download your FREE copy of our Spa Pool Buyer's Guide for step-by-step advice through the buying process.
The benefits of swimming
Capable of delivering elite resistance training, low-impact rehabilitation, and cardiovascular fitness in the pool you already own, the Fastlane Swim™ is a proven tool for long-term health. The benefits of regular aquatic exercise include:
Swimming against airless current elevates your heart rate and builds cardiovascular endurance, delivering a full aerobic workout without the joint impact of land-based training.
The consistent, adjustable resistance of the Hydrodrive™ current strengthens and tones your entire body, from shoulders through to your legs, across every session.
Water buoyancy reduces the load on joints, bones, and muscles during a swim. Set it to a gentle paceor increase resistance progressively as strength and mobility improve.
Regular aquatic exercise reduces stress hormones and promotes mental clarity as well as supporting focus, sleep, and long-term wellbeing.
Swimming machine accessories
With a range of exciting accessories, Endless Pools customers are given the opportunity to make their Swim Machine experience entirely their own. Optional Swim Machine accessories include:
Fastlane Tread™
The Fastlane Tread™ underwater treadmill provides a low-impact aquatic workout with a speed range of 0.16 kph to 9 kph. Note: the Fastlane Tread™ is not available as a retrofit addition.
Fastlane® Tread
Aquabike™
The Aquabike™ is a lightweight aquatic water bike compatible with all Endless Pools® Fastlane-compatible models. Low-impact resistance cycling in the water builds leg strength and cardiovascular fitness without the pounding of the road.
Aquabike
LED Digital Pace Display
Monitor your performance in real time with the optional 6-inch LED Digital Pace Display, showing your exact swim or walk speed so you can track progress and hit your training targets session after session.
Floor mirror
Include the stainless steel Floor Mirror on the pool bottom to observe your stroke technique in real time. An essential training tool for swimmers looking to refine form and correct errors during every session.
Swim tether
Anchor yourself in the centre of the Hydrodrive™ current using the swim tether to focus on technique without drifting. Ideal for beginners finding their stroke or experienced swimmers isolating specific training drills.
Row bar/resistance kit
The row bar and resistance kit combines upper-body strength work with cardiovascular conditioning in the water, using the airless current as resistance, delivering a full-body strength and endurance session without leaving your pool.
Are swimming machines high maintenance?
No, they don’t have to be – by carefully choosing your swim spa, you can minimise work and maximise play. The best swimming machines don’t demand much maintenance at all:
As little as five minutes per month with Hot Spring technologies.
As little as once every four months with Hot Spring technologies.
As little as once a year with Hot Spring technologies.
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