"Low maintenance" gets thrown around on every hot tub website, ours included, so it is worth being specific about what it means in minutes. On an Eco Spa with the Ecozone system, water care runs about 15 minutes a month plus a 30-second weekly test strip check. On a traditional acrylic tub relying on chlorine or bromine alone, the routine commonly runs 2 or more hours a week, which adds up to over 100 hours a year of testing, dosing, shocking and scrubbing.
That gap is not a marketing gadget. It comes from four design decisions that either fight the water's chemistry or work with it. This guide walks through what those decisions are, lays out the real weekly-to-yearly schedule for both types of tub, and is honest about the maintenance that does not go away, because none of it does.
The four decisions that actually produce low maintenance
Most premium brands sell an ozone generator as their low-maintenance answer. Ozone helps, but bolted onto the wrong shell it is fighting a battle it cannot win. Low maintenance is a system, not a single part.
1. A non-porous shell. Acrylic and fiberglass are porous at a microscopic level. Bacteria colonize those pores and form biofilm, a layer that keeps reseeding the water no matter how much sanitizer gets added. HDPE is non-porous and chemically inert, so there is nowhere for a colony to anchor and nothing extra for the sanitizer to fight.
2. A hard cover that never needs replacing. A conventional foam-core cover absorbs moisture through its seams and stitching, gets heavier every season, and typically needs replacing every three to six years at around $800 each time. The Eco Spa hard cover is a rigid R-40 unit rated to a 350 lb load with a lifetime warranty. That is one recurring maintenance task removed permanently, not just delayed.
3. Oversized filtration. Every Eco Spa ships with 5x filtration, and the Ecozone system pairs that with two oversized filters delivering roughly 100 feet of filter media. Particles get pulled out before they ever reach the ozone stage, which is a large part of why the monthly filter rinse is the whole job rather than the first step in a longer one.
4. Continuous ozone. Ecozone's plasma-discharge ozone oxidizes contaminants on contact, roughly 3,000 times faster-acting than chlorine, then reverts to oxygen with no residue left behind. It is an upgrade on most Eco Spa models and standard on the Deluxe models, and it is the single biggest reason the chemical side of the job drops by about 90%.
Run those four together and the sanitizer becomes a small residual you top up occasionally, not a routine you build your week around.
The real schedule: acrylic versus Eco Spa
Here is what each type of tub actually asks of an owner, broken down by how often the task comes up.
| Frequency | Typical Acrylic Tub | Eco Spa with Ecozone |
|---|---|---|
| Weekly | Test pH and alkalinity, add chlorine or bromine, shock the water, check sanitizer level. About 2 or more hours. | Dip a test strip, compare pH and sanitizer to the chart, latch the cover. About 30 seconds. |
| Monthly | Same chemical routine repeats, plus scrubbing waterline buildup that keeps returning on a porous surface. | Rinse the filter, wipe the waterline, check water balance, top up sanitizer if needed, inspect the cover. About 15 minutes. |
| Quarterly | Drain and refill on the shorter end of the common three-to-four-month guideline, since a porous shell reseeds bacteria faster. | Soak the filter overnight in filter cleaner (about 10 minutes plus the soak), and drain, wipe the shell and refill roughly every 3 to 6 months, about an hour of hands-on time. |
| Yearly | Roughly 100+ hours of cumulative upkeep, plus budgeting toward a foam cover replacement every three to six years at around $800. | Replace filters and inspect the cover and equipment bay. About an hour, once. |
The drain interval is not fixed to a date on either tub. It is driven by bather load: a couple using the tub a few evenings a week can stretch toward the long end, and some Eco Spa owners push it to 4 to 5 months between drains once they know their own water.
What you still have to do
None of this is zero maintenance, and we are not going to pretend otherwise. A small sanitizer residual is always required, on any hot tub sold in Canada, ours included. Here is the honest list of what stays on an Eco Spa owner's plate:
The weekly strip test. Thirty seconds with a test strip against the chart on the bottle. Most weeks nothing needs adjusting, but you still have to check.
The monthly routine. Rinsing the filter, wiping the waterline, checking pH and alkalinity, and topping up sanitizer when the strip calls for it. Roughly 15 minutes, following the full schedule in our hot tub maintenance guide.
The drain and refill. Every few months, the total dissolved solids in the water build up regardless of how good the filtration and ozone are, and the fix is to drain, wipe the shell and start fresh. It is about an hour of actual hands-on time spread across a longer window.
Two habits that do more than any gadget. Latch the cover every single time you get out, and rinse off before getting in. Body oils, lotion and detergent left in swimwear are one of the largest avoidable contributors to dissolved solids, and neither habit costs a dollar.
What goes away is not the sanitizer, it is the fighting. On a shell that cannot hold biofilm, with real filtration and ozone doing the heavy oxidizing, the small amount of sanitizer you do add is actually working instead of being consumed by a losing battle against the surface.
The bottom line
Low maintenance is a real, measurable outcome, roughly 15 minutes a month and a 30-second weekly check, but it comes from four things working together: a non-porous shell, a hard cover that never needs replacing, oversized filtration, and continuous ozone. Strip out any one of them and the routine creeps back toward the acrylic-and-chlorine column. Read our guide on Chemical-Free Hot Tubs: What's Actually Possible for the honest limits of how low the chemical side can go, and see how the system is built into every model on the Ecozone page.
Frequently asked questions
What does "low maintenance" actually mean for a hot tub?
On an Eco Spa it means about 15 minutes a month plus a 30-second weekly test strip check. A traditional chlorine-reliant acrylic tub commonly runs 2 or more hours a week, over 100 hours a year, between testing, dosing, shocking and scrubbing the waterline.
Is there such a thing as a zero-maintenance hot tub?
No. Every hot tub needs a small sanitizer residual and a weekly check, and ours is no exception. Low maintenance is the honest goal, not zero maintenance. Our guide on Chemical-Free Hot Tubs: What's Actually Possible covers why that residual can never fully disappear.
Do you still need to add chemicals with Ecozone?
Yes, a small amount. Ecozone's ozone handles the bulk of the oxidizing work and cuts chemical use by about 90%, but you still carry a small sanitizer residual and check it weekly. Ecozone is an upgrade on most Eco Spa models and standard on the Deluxe models.
How often do you have to drain a low-maintenance hot tub?
The common guideline is every three to four months, driven by bather load rather than the calendar. Some Eco Spa owners with the Ecozone system stretch that to four or five months, since the water is not fighting a porous shell in between.
Does a hard cover really never need replacing?
The Eco Spa R-40 rigid hard cover, rated to a 350 lb load, carries a lifetime warranty. A conventional foam-core cover absorbs water over time and typically needs replacing every three to six years at around $800 each time.