Ask someone who doesn't own a hot tub what the maintenance is like and they'll say something like "doesn't it take a lot of work to keep the water clean?" Ask someone who owns an Eco Spa and they'll shrug. They're not being dismissive. It genuinely takes about 15 minutes a month.
Here's the complete routine, broken down by frequency.
The Myth of High-Maintenance Hot Tubs
The reputation hot tubs have for being maintenance-heavy comes from a real place. Traditional acrylic hot tubs with porous shells and basic chlorine systems do require more effort. The porous surface harbors biofilm. The chlorine gets consumed faster fighting a losing battle. You end up shocking the water weekly, scrubbing the waterline monthly, and still fighting cloudy water that won't quite clear.
That's not a hot tub problem. That's a shell material and sanitation system problem.
With a non-porous HDPE shell and the Ecozone ozone system doing 90% of the sanitation work, maintenance becomes what it should have been all along: a quick check-in, not a chore.
Weekly: The 30-Second Check 30 sec
Once a week, dip a test strip in the water, pull it out, and compare the colours to the chart on the bottle. You're checking two things:
- Sanitizer level: should be in the low range since Ecozone handles most of the work. A small residual is all you need.
- pH: aim for 7.2-7.8. If it's off, add the appropriate balancer.
If both are good, you're done. Put the cover back on. That's your weekly maintenance. It takes less time than checking your mail.
Most weeks, nothing needs adjusting. Ecozone stabilizes the water chemistry between uses. You're really just confirming what you already expect.
Monthly: The 15-Minute Routine 15 min
Complete in any order
- Rinse the filter. Remove the filter cartridge, take it to a garden hose, and spray it down from top to bottom between the pleats. Takes 3-4 minutes. Replace it. Done. No soaking required for the monthly clean.
- Wipe the waterline. Use a soft cloth or sponge with a hot tub surface cleaner. The HDPE shell is non-porous so there's no scum buildup to scrub out, just a light wipe to keep it looking clean. Takes 2-3 minutes.
- Check water balance. pH, alkalinity, and calcium hardness. Use a test strip or a 3-in-1 strip. If something's off, add the appropriate balancer.
- Add sanitizer top-up if needed. Based on your weekly strip readings and how much the tub has been used. Light use weeks may need nothing. Heavy use weeks or after a party, add a small dose.
- Inspect the cover. Quick visual check. If it's a hard cover, wipe it with a UV protectant every couple of months to keep the exterior looking good.
That's the whole monthly routine. Fifteen minutes if you move slowly. Ten if you've done it a few times.
Every 3-4 Months: Drain and Refill ~1 hour
Water gets tired. Even with great chemistry and an ozone system, the total dissolved solids build up over time and the water stops responding well to balancing. The fix is simple: drain it, clean the shell, refill it.
- Drain the tub. Attach a garden hose to the drain valve and let it empty. Takes 20-30 minutes depending on your tub size.
- Wipe down the shell. The HDPE surface cleans in minutes with a soft cloth and a mild non-abrasive cleaner. There are no pores to scrub, no gelcoat to worry about damaging. A quick wipe and rinse is all it takes.
- Clean the filter thoroughly. This is when you do the deeper chemical soak if you want to extend the filter's life. Overnight soak in a filter cleaning solution, then rinse thoroughly before reinstalling.
- Refill. Run your hose. Takes 20-30 minutes.
- Rebalance. Fresh water needs a full balance: pH, alkalinity, calcium hardness, then your initial sanitizer dose.
The whole process is about an hour of actual time, though you're not standing there watching for most of it. Drain while you do something else. Fill while you do something else. You're really only hands-on for 20-25 minutes.
Some Eco Spa owners with the Ecozone system stretch this to 4-5 months between drains. That's fine. Let your test strips guide you. When balancing gets harder and the water looks less clear than usual, it's time.
The Full Hot Tub Maintenance Schedule
Most guides give you a monthly routine and stop. Here is the whole thing on one page, so you can see what genuinely needs doing and how often.
| How often | What it involves | Time |
|---|---|---|
| Every use | Latch the cover properly on the way out | 5 seconds |
| Weekly | Test the water, check the level, glance at the cover seal | 30 seconds |
| Monthly | Rinse the filter, adjust balance, add an enzyme stick | 15 minutes |
| Quarterly | Soak the filter overnight in filter cleaner | 10 minutes plus a soak |
| Every 3 to 6 months | Drain, wipe the shell, flush the lines, refill | About an hour |
| Annually | Replace filters, inspect the cover and the equipment bay | About an hour |
The drain interval is driven by bather load rather than the calendar. A couple using it a few evenings a week stretches to the long end; a family using it most days sits at the short end. How often to change hot tub water has the schedule by household.
Water Chemistry Targets
Four numbers cover almost everything. These are the standard ranges for residential spas, not Eco Spa specific.
| Reading | Target range | What happens outside it |
|---|---|---|
| pH | 7.2 to 7.8 | Low corrodes components, high scales and clouds |
| Total alkalinity | 80 to 120 ppm | Low lets pH swing, high makes pH stubborn |
| Calcium hardness | 150 to 250 ppm | Low is corrosive, high scales the heater |
| Sanitiser | A small steady residual | Zero grows organisms, high irritates skin |
Fix alkalinity before pH. Alkalinity buffers pH, so chasing pH with the alkalinity wrong means fighting it every week. Get alkalinity into range first and pH usually settles by itself.
We do not publish a dosing chart, because the right amounts depend on your fill water, your model and how you use it. Our team builds a personal maintenance template with you at delivery instead.
How to Clean a Hot Tub
Cleaning and sanitising are different jobs. Sanitiser handles what is living in the water. Cleaning handles what has settled on surfaces.
- Cut the power before draining. A heater that runs dry is an expensive mistake.
- Drain, then wipe the shell with a soft cloth and a non-abrasive spa surface cleaner. Never use abrasive pads, bleach or household bathroom cleaner. On a non-porous HDPE surface this is a wipe and a rinse.
- Clean the waterline, where body oils and lotion collect as a visible ring.
- Flush the plumbing with a line cleaner if it has been a while. Biofilm lives in the pipework, not just the water, so draining without flushing reseeds the fresh fill.
- Clean or replace the filter before refilling. Refilling over a loaded filter undoes the whole job.
- Refill through the filter housing so air is pushed out of the plumbing instead of trapped in the pump.
- Balance on cold water, then bring it up to temperature.
Shell material changes how hard this is. Acrylic is porous at a microscopic level, so contamination works into the surface and never fully scrubs out. HDPE is non-porous, which is why the wipe is a wipe.
The Three Habits That Replace Most Maintenance
- Latch the cover every single time. Highest impact, zero effort, and it protects your running cost as well as the water.
- Rinse before getting in. Body oils, lotion and detergent left in swimsuits are the largest single contributor to dissolved solids, and nearly all of it is avoidable.
- Clean the filter on schedule. Restricted flow is behind most reported faults, including jets that seem weak and water that will not heat. See common hot tub problems.
The Ecozone Advantage
It's worth pausing on what makes all of this so simple: Ecozone.
Ozone (O3) is activated oxygen. When injected into hot tub water, it oxidizes bacteria, viruses, and organic contaminants on contact. It's 3,000 times faster-acting than chlorine and the only byproduct is pure oxygen. It doesn't create chloramines, it doesn't irritate eyes or skin, and it doesn't bleach swimwear.
In a standard hot tub, chlorine is your primary sanitizer. You're dosing it several times a week, shocking regularly to break down chloramines, and constantly fighting a war against contamination. In an Eco Spa with Ecozone, the ozone handles 90% of the work continuously. You maintain a small residual sanitizer as a safety net, but you're not fighting anything. You're maintaining a system that's already doing the work.
This is why the weekly check takes 30 seconds. There's almost nothing to adjust because the ozone has already handled it.
What About Winterizing?
Honest answer: most Eco Spa owners never winterize. They use the tub year-round and the HDPE shell handles everything Canadian winters throw at it without complaint. Winter soaks are genuinely some of the best experiences the tub offers.
If you do need to shut down for a season (extended travel, property closure), the process is straightforward:
- Drain completely via the drain valve.
- Use a shop vac to blow out the plumbing lines and jets. This removes any water that could freeze and crack PVC lines.
- Remove and store the filter cartridge indoors.
- Lock the hard cover.
The HDPE shell will sit through a BC winter without any issue. It doesn't crack, it doesn't fade, it doesn't need to be wrapped or covered beyond the hard cover it already has.
Products We Recommend
For the specific products and chemical brands we recommend for Eco Spa owners, visit the how to operate page. It covers the full product list with recommended doses and frequencies.
General principle: use products designed for hot tubs (not swimming pools), and buy from a reputable hot tub supply store rather than discount retailers. Pool chemicals have different concentrations and can damage your equipment or throw off your chemistry fast.
The Bottom Line
Fifteen minutes per month. Four drain-and-refills per year. A 30-second strip dip each week. That's the entire maintenance commitment for an Eco Spa.
People who call hot tubs high-maintenance are comparing them to a different category of product. With the right shell and the right sanitation system, it's genuinely one of the lowest-maintenance things in your backyard.
If you want to see what the full operating experience looks like, read the how-to-operate guide or browse our FAQ for answers to specific questions. Ready to see the tubs in person? Book a showroom visit.