Hot Tub Maintenance Schedule: Weekly, Monthly & Seasonal Checklist

Owning a hot tub is mostly two things: soaking in it, and spending a little time each week keeping the water safe enough to soak in. The good news is that “a little time” is genuinely little — about 15 minutes a week for the essentials, plus a few bigger jobs each month and each season. The bad news is that skipping maintenance doesn’t just make the water gross; it shortens the life of your filter, your heater element, and your cover.

This schedule is built for inflatable hot tubs (the territory this site covers), but the weekly and monthly rhythm applies to hard-shell spas too. Times are realistic estimates for an average owner, not a professional. And every task includes the honest part most schedules leave out: what actually happens if you skip it.

The weekly routine (~15 minutes)

Do this every week, the same day if you can. Put it in your phone as a recurring reminder. This one routine prevents roughly 90% of the problems in our troubleshooting guide — cloudy water, foam, and smell almost always trace back to skipped weekly basics.

1. Test the water (~5 minutes)

Use test strips or a liquid test kit to check sanitizer level and pH. The widely published target ranges are:

• Chlorine: 1–3 ppm (parts per million)
• Bromine: 2–4 ppm
• pH: 7.2–7.8
• Total alkalinity: 80–120 ppm (test monthly or when pH won’t stay put)

Adjust with your sanitizer of choice and pH increaser/decreaser as needed. If you’re not sure how much to add, our chemical dosing calculator works out the amounts for your tub’s water volume — take the guesswork out before you pour. New to the whole chemistry thing? Start with the beginner’s water-care guide.

If you skip it: sanitizer burns off in a day or two of use, and un-sanitized water grows bacteria and biofilm. This is the one weekly task that is non-negotiable — skip it for two weeks and you’ll likely be draining the tub early.

2. Skim the surface (~3 minutes)

Scoop out leaves, insects, and floating debris with a small skimmer net.

If you skip it: debris breaks down and feeds algae and cloudiness; some of it sinks into the filter and shortens its life. Minor, but it’s three minutes.

3. Wipe the waterline (~3 minutes)

A quick wipe of the scum line at the water’s edge with a damp cloth or a spa-safe sponge. Body oils, lotions, and sunscreen collect there.

If you skip it: the line turns into a sticky ring that’s much harder to remove later — and that ring is a feeding ground for biofilm.

4. Check the filter cartridge (~2 minutes)

Pull the filter and give it a rinse with a hose (not a pressure washer — it tears the pleats) if it looks gray or clogged. While it’s out, confirm water is still circulating.

If you skip it: a clogged filter starves the heater of flow, which can trip the heater’s thermal cut-off or error code. Filters are cheap; heater repairs aren’t.

5. Check the water level (~1 minute)

Top up with a hose if it’s below the minimum fill line — inflatable tubs lose water to evaporation and splashing, and running a heater exposed to air can damage it.

If you skip it: low water exposes the heater element and burns it out. This is the most expensive five-second check on this list.

The monthly routine (~30–45 minutes)

6. Deep-clean the filter (~15 minutes)

Once a month, soak the filter cartridge in a filter-cleaning solution (or a diluted spa filter cleaner) per the product’s instructions, then rinse thoroughly. Rotating two cartridges — one in the tub, one clean and dry — is the simplest way to make this painless, since a dry filter rinses cleaner than a wet one.

If you skip it: oily buildup deep in the pleats that rinsing can’t remove. Your water gets harder to keep clear, and you’ll replace cartridges more often.

7. Inspect the jets (~5 minutes)

Turn each jet on and off, spin adjustable nozzles, and check for weak flow. Clear any debris from jet openings.

If you skip it: scaled-up jets quietly reduce circulation, which quietly raises your chemical and heating bills. Catch it early and it’s a wipe; catch it late and it’s a descale job.

8. Inspect the cover (~10 minutes)

Check for waterlogging (heavy covers), cracks, torn stitching, and a failing seal. Wipe the underside with a sanitizer-safe cloth. Our covers guide covers what to look for and when a replacement pays for itself in energy savings.

If you skip it: a waterlogged or gappy cover is a hole in your energy budget — heat escapes straight through it, and the running-cost calculator will show you exactly how much that costs over a year.

9. Scrub the shell above the waterline (~10 minutes)

Give the exposed shell a proper scrub with a non-abrasive cleaner — this is the deeper version of the weekly wipe, and it stops the ring from becoming permanent.

If you skip it: cosmetic mostly, until it isn’t — a neglected shell gets rough, and rough surfaces give biofilm more to grip.

The seasonal / quarterly routine (~1–2 hours)

Every 3–4 months (or sooner if the water starts resisting your chemistry — high total dissolved solids is the usual reason a tub suddenly gets hard to balance), do the full refresh:

10. Drain and refill (~60–90 minutes, mostly waiting)

Cut the power, drain via the drain valve and a submersible pump or hose siphon, then wipe down the empty shell before refilling. While the tub is empty is the only easy time to inspect the floor and seams.

If you skip it: water accumulates dissolved solids, lotions, and everything else your filter can’t catch. Eventually no amount of chemicals will balance it — you’ll smell it before you measure it. Quarterly refills are the single biggest “fresh start” in hot tub ownership.

11. Condition the cover (~10 minutes)

Treat the cover with a vinyl protectant to guard against UV and chemical off-gassing damage.

If you skip it: covers age faster in sun and chemical vapor; protectant roughly doubles the useful life of the vinyl skin.

12. Check chemical stock (~5 minutes)

Inventory your sanitizer, pH adjusters, test strips, and filter cartridges. Running out mid-week is how “I’ll test tomorrow” starts.

Winter: the honest section

If you live somewhere with hard freezes and you own an inflatable, you have two honest options:

• Run it through winter — keep the heater on, check water levels more often, and expect higher electricity bills. Inflatables lose heat faster than insulated hard-shells, so winter running costs are meaningfully higher (see the running-cost calculator with a cold climate selected).
• Shut it down — drain fully, blow out the lines, clean and dry everything, and store it somewhere it won’t freeze with water trapped inside. A half-drained tub in a hard freeze is a cracked tub.

What doesn’t work: leaving it full and unheated “just for a few cold nights.” Frozen water expands; plumbing doesn’t.

Which tasks can you actually skip?

Honest triage, because nobody follows a 12-item list perfectly:

• Never skip: weekly sanitizer/pH testing, water level checks. These two prevent the expensive failures.
• Defer a week if life happens: skimming, waterline wipes, the monthly jet check. They compound slowly, not suddenly.
• Defer a month, not a season: filter deep-cleans, cover inspection. The damage is cumulative and invisible until it isn’t.
• Defer at real cost: quarterly drains. You’ll pay for it in chemical bills and frustration instead.

The pattern: tasks that protect the heater and the water chemistry are non-negotiable; tasks that protect appearance and efficiency are flexible. Everything on this list earns its place by preventing a specific, named, more expensive problem — which is exactly why each one links into the water-care cluster above.

Methodology note

This schedule synthesizes widely published hot tub maintenance guidance (manufacturer manuals and water-chemistry references) into one owner-friendly routine. Time estimates are realistic averages for inflatable tubs; your mileage will vary with tub size, climate, and how many people use the tub. Last reviewed: October 2026.