The company file
Dimension One Spas
A Southern California original that sells customization: patented UV-and-ozone water care, jetted pillows that slide to your height, loungers that keep you seated and programmed massage sequences.
The long read: how the tubs are built, the complaint record, the warranty part by part, and the company’s history.
How it started
Bob Hallam started it as a retail store. It grew into a maker of hot tubs and aquatic fitness systems.
What Dimension One Spas is known for, and the catch
How it’s built
Eight things that decide whether it lasts. Tap any for the detail.
Self-supporting shellA wood frame carries the shell, per D1's own warrantyNo
D1 warrants a factory-installed wood frame as a component, and its own patent describes rails and box sections taking the shell's vertical load. The full-cabinet foam is credited with reinforcing the structure as well. The lifetime UltraLife shell warranty covers cracks and leaks, not standing up without a frame.
What this means, and how to check it →cdn.prod.website-files.com ↗cdn.prod.website-files.com ↗
Clamped plumbingDimension One Spas doesn't publish this. Ask the dealerNot published
Jet bodies use a glued socket on the water side and a barb for air. What happens along the runs between pump, manifold and jet is documented nowhere. Warranties cover plumbing leaks for three to five years but never say how the joints are made.
What this means, and how to check it →quickspaparts.com ↗easyspaparts.com ↗
Manifold-fed jetsDimension One Spas doesn't publish this. Ask the dealerNot published
The manuals describe diverter valves that send water between jet banks, which is zoning rather than the pipe layout behind the shell. No parts diagram, cutaway or service video shows how each jet is fed. Suppliers list no D1 manifold, which settles nothing either way.
What this means, and how to check it →cdn.prod.website-files.com ↗easyspaparts.com ↗
Standard partsCommon Balboa and Waterway parts, but the warranty requires D1 partsPartly
Pumps, controls, jets and filters come from Balboa, Gecko, Waterway, Sta-Rite, Laing and Pleatco, and at least six independent suppliers stock them. Every 2025 warranty voids coverage for damage blamed on non-D1 parts. Finding parts is easy; fitting them before the warranty ends is the risk.
What this means, and how to check it →cdn.prod.website-files.com ↗hottuboutpost.com ↗
Compression-fitted jetsLikely nut-held standard bodies, but Dimension One doesn't sayPartly
D1 builds on Waterway's Storm jet families, which come in a nut-and-gasket version and a push-in grommet version. A parts seller lists the threaded body for D1 tubs, but nothing from D1 confirms it. Nothing shows glued bodies.
What this means, and how to check it →cdn.prod.website-files.com ↗waterwayplastics.com ↗
Adjustable jetsEach rotating jet face opens, throttles or shuts offYes
Turn the jet face counterclockwise to open it and clockwise to close it, all the way to off. Directional jets only aim the stream, so fewer jets throttle than the headline count suggests. D1 tells owners to keep at least six adjustable jets open at all times.
What this means, and how to check it →cdn.prod.website-files.com ↗cdn.prod.website-files.com ↗
Service networkYour selling dealer handles service, with the factory as backupPartly
Warranty work routes through an authorized D1 dealer or the factory in Chino, California. Outside repairs need pre-authorization, and a non-D1 part fitted by an independent can cost you coverage. Parts are widely sold, so out-of-warranty work stays open. D1 doesn't publish dealer coverage by region.
What this means, and how to check it →cdn.prod.website-files.com ↗pmhokc.com ↗
American made?American company in California, but no factory address is statedPartly
Warranties and patents point to New Dimension One Spas in Chino, California, and the brand has built spas in San Diego County since the late 1970s. Nothing on the site or in the manuals names a plant. Chino may be corporate and service rather than production.
What this means, and how to check it →cdn.prod.website-files.com ↗cdn.prod.website-files.com ↗
What Dimension One Spas says, part by part8
D1 publishes jet names and 'Hydronomics' balance claims, but no jet-body connection method or pipe type.
D1 markets 'Hydronomics' pump, plumbing and jet balance plus a 24-hour circulation pump. Pipe material and fitting method not published.
Full foam: D1 says a high-density foam layer covers the base and a second high-density layer coats the walls.
UltraLife textured shell or color acrylic, reinforced with robotically applied 'elastocast' in place of fiberglass, according to D1.
D1 describes a 'reinforced base' that absorbs pump pressure and secures piping. Base material is not published.
Barbed, clamped or glued? What it means3
Hose slides over a ridged fitting and a clamp holds it. Easy to service, but clamps are one more thing that can loosen.
Pipe is solvent-welded into the fitting and becomes one piece. A strong seal, but a leak repair means cutting and re-gluing.
Which method this model uses, whether the joints are reachable for repair, and what the plumbing warranty covers.
What owners and watchdogs say
A BBB letter grade rates how a company handles complaints, not how happy owners are. Read it next to the complaint count and the reviews.
How complaints ended, and the reviews by star2
- 0 Resolvedthe customer accepted the company's answer
- 0 Answeredthe company replied; the customer didn't confirm it was fixed
- 0 Unresolvedthe company replied; the customer said it wasn't fixed
- 1 Unansweredthe company never replied
The company replied to 0 of 1. A complaint count means more next to how big the company is.
What owners complain about4
Owners report flow-sensor and circulation-pump failures causing no-heat errors, including one repair costing about $1,300 at roughly 3.5 years.
Two separate owners report topside control panels failing again and again, replaced about five times in six years.
The warranty, part by part
Read the warranty card before you sign: what labor is covered after year one, and whether the coverage moves to a second owner.
History and ownership
Founded in 1977 in California (based in Vista at its 2013 sale). Changed hands 2 times. Owner today: Investindustrial (private equity) through Jacuzzi Group; legal name New Dimension One Spas, Inc.
Who has owned it
- 1977Founded by Bob and Linda Hallam in California (based in Vista at its 2013 sale).
- 2013Jacuzzi Group Worldwide buys the company, which is renamed New Dimension One Spas and runs separately from Vista.
- 2019Parent Jacuzzi Brands, with Dimension One in its lineup, is sold to Investindustrial by Apollo, Ares and Clearlake.
- TodayInvestindustrial (private equity) through Jacuzzi Group; legal name New Dimension One Spas, Inc.
Full timeline5
- 1977FoundedFounded by Bob and Linda Hallam.
- 2013Changed handsJacuzzi Group Worldwide buys the company, which is renamed New Dimension One Spas and runs separately from Vista.
- 2016BrandLaunches the UltraLast cover, 20% lighter than vinyl, shared with sister brands Sundance and Jacuzzi.
- 2019Changed handsParent Jacuzzi Brands, with Dimension One in its lineup, is sold to Investindustrial by Apollo, Ares and Clearlake.
- 2023LeadershipFounder Bob Hallam dies in May, aged 78.
Where it's built0
Charity and sponsorships0
We couldn’t find any public record of charity work or sponsorships. That doesn’t mean there isn’t any. Tell us if we missed it.
Recent news0
Nothing we could source from 2024 to now.
Good to know4
- Dimension One says its factory covers 40,000 square meters and its spas are sold in over 60 countries. It names no city.
- Jacuzzi Spa's April 2025 announcement lists Jacuzzi, Sundance and Dream Maker as its brands. Dimension One is not named.
- Dimension One is not among the four Jacuzzi Group brands named in a July 2026 marketing-agency announcement.
- Better Business Bureau lists New Dimension One Spas, Inc. at a Carlsbad, California office suite.
Ownership last checked September 2026. Who owns every hot tub brand.
What’s a good deal on a Dimension One Spas hot tub?
We send you the price range, then introduce you to one Dimension One Spas dealer near you.