After 25 years selling and servicing hot tubs, I’ve watched the same marketing promises come around again and again. And every time, I see buyers disappointed when reality doesn’t match the sales pitch. The manufacturers and sales people aren’t being totally dishonest—they’re just strategically emphasizing what sounds best in a brochure. But you deserve to know what actually happens when that tub is in your backyard.
Here are three claims I hear constantly, and what the real story is.
CLAIM 1: “NO CHEMICALS NEEDED”
This one breaks my heart because it gets repeated so often, and I see the letdown on customers’ faces when I have to set them straight.
Here’s what’s true: You absolutely still need sanitizer. Full stop. The CDC, every health department in the country, and every manufacturer’s fine print will confirm this. Whether it’s chlorine, bromine, or some brand-specific system, something has to kill bacteria and pathogens in that water. No UV system, no ozone, no copper/silver cartridge changes that fundamental requirement.
What these systems actually do: UV and ozone help reduce the need for bromine/chlorine that make your water smell bad and irritate eyes but do NOT eliminate them. Salt chlorine generators produce chlorine they aren’t chlorine/bromine free. These are real benefits—but they’re supplementary, not replacements.
The frustration: Buyers who fall for the “no chemicals” pitch end up either shocked when they still need to buy sanitizer, or worse, they skip it because they believed the claim. That’s when you get cloudy water, biofilm, and algae.
What to actually expect: Any quality hot tub will have some form of chemical maintenance. A good system makes it simpler and less frequent, but not eliminated. When you’re comparing tubs, ask: “What do I actually need to add and how often?” Not “Will I need chemicals?”
CLAIM 2: “MORE JETS = BETTER MASSAGE”
I’ve seen hot tubs with 100 plus jets. I’ve also seen people soak in them for two minutes because the massage quality is terrible.
Here’s what matters: Jet placement, jet size, pump pressure, and water flow matter infinitely more than jet count. A well-engineered 40-jet tub will give you a better massage than a poorly designed 100-jet tub, every single time.
Why manufacturers push jet counts: It’s easy to advertise. “60 jets!” sounds impressive. Explaining water pressure dynamics and ergonomic placement doesn’t fit on a billboard.
The real engineering: If you have too many jets and not enough pump power, the pressure spreads thin. You get weak, unsatisfying bubbles instead of therapeutic massage. Conversely, 20 powerful, strategically placed jets hitting your lower back, shoulders, and calves might give you exactly what you need.
What I’ve seen in the field: Customers with high jet-count tubs often stop using the massage jets after the first year because they’re underwhelming. Meanwhile, someone with a well-designed 35-jet system uses theirs nightly because it actually helps their back pain.
What to actually expect: When you’re shopping, sit in it. Spend 10 minutes in a wet test if the dealer offers it. Don’t count jets—feel whether the jets hit your trouble spots and whether the pressure feels therapeutic. Ask about jet variety: Does this tub have jets for neck, lower back, feet, and full-body? That matters more than the total.
CLAIM 3: “SELF-CLEANING MEANS LOW MAINTENANCE”
Some brands claim their tubs are “self-cleaning” or “maintenance-free.” Hydropool and Coast Spas famously markets this with their pressurized filtration system. And they’re right that it reduces filter maintenance. But “reduced” is not the same as “eliminated.”
Here’s what self-cleaning actually does: Advanced filtration systems cycle the water through filters more frequently and efficiently, so you don’t have to manually vacuum the floor or clean the filter as often. That’s genuinely helpful.
Here’s what it doesn’t do: You still need to test and balance pH and alkalinity. You still need to add sanitizer. You still need to drain and refill periodically (usually every 3 to 4 months). You still need to clean or replace filters—just less frequently.
The honest version from Hydropool’s own manual: “Self-cleaning does not remove all maintenance. Your water will still require balancing, and you will still need to sanitize it with chlorine or bromine.”
What I’ve seen: Buyers who expect truly zero maintenance get frustrated when they learn there’s still a weekly or bi-weekly testing routine. And if they skip it, their “low maintenance” tub becomes a high-problem tub.
What to actually expect: A good filtration system saves you time, but doesn’t eliminate responsibility. Budget for 15 to 20 minutes per week of basic water testing and occasional chemical adjustments. If a dealer tells you otherwise, they’re overselling.
WHY THIS MATTERS
I’m not saying manufacturers are wrong—I’m saying they’re selective about what they emphasize. Marketing and sales teams optimize for what sells, not for what’s most accurate. It’s not malicious; it’s just how business works.
But you’re making a big purchase. You deserve realistic expectations so you’re not disappointed or frustrated six months in. A hot tub that fits your actual lifestyle and maintenance tolerance is a joy. A hot tub where reality clashes with what you were sold becomes an expensive regret.
When you’re shopping:
Ask about sanitizer requirements directly. What do you actually add each month?
Do a wet test. Feel the jets yourself.
Ask what “maintenance-free” actually means to that brand. Get specifics.
Talk to current owners if you can—especially on Reddit’s r/hottub forum. They’ll tell you what they really deal with weekly.
You’ve got this. Just ask good questions.
For more information on how to shop and compare hot tubs before purchasing please visit our hot tub buyer’s guide pages. You can also click on the pink boxes at the top right of every page to get a free local quotes from dealers in your area. Or, click our “Spa Buyer’s Consult” link above to get one-on-one expert advice on how to shop around for the best hot tubs available in your area
