Sundance Spas Optima hot tub

A base pan and a separate frame hold it up.

Sundance's own patent shows the acrylic shell resting on an ABS base pan and a frame of vertical supports and a top rail. Sprayed foam beds the shell into place and insulates it. Take away the pan and frame and the shell has nothing to stand on.

Applies to: All models (680, 780, 880 and 980 Series). Older tubs have a wood support structure; the current patented platform uses molded ABS supports

Why it matters, and how to check it

Some joints are clamped barbs, others are glued slip fittings.

The parts catalog lists barbed manifolds and jet bodies along with Sundance-numbered hose clamps, but also slip ports that are glued solid. Which one you get depends on the circuit. Either way the lines sit in sprayed foam, so reaching a leak means digging foam out first.

Applies to: All models (from the shared Sundance and Jacuzzi parts catalog, not a teardown). The mix of barb and slip fittings seems to vary by model and circuit

Why it matters, and how to check it

Manifold-fed. One trunk line splits out to each jet.

Sundance sells its own 2, 4, 6 and 7-port water manifolds plus air manifolds and blank plugs. Jet bodies have one water port and no pass-through to the next jet, so a blocked jet does not starve the rest. This comes from the parts catalog, not an opened cabinet.

Applies to: All models (from the shared Sundance and Jacuzzi service parts catalog; not checked against a teardown or a factory plumbing diagram)

Why it matters, and how to check it

Pumps and filters are standard parts; jets and boards are not.

Pumps trace back to Aqua-Flo, Balboa and Emerson, flow switches are Harwil, and filters cross-reference to Unicel and Pleatco. Independent suppliers sell all of it online without a dealer account. Fluidix jets, control boards, topside panels and ClearRay UV only come from Sundance.

Applies to: All models; the mix of standard and proprietary parts is the same across series

Why it matters, and how to check it

Many jet bodies bolt in with a nut; the main Fluidix body isn't documented.

Parts sellers list body nuts, washers and O-rings for most Sundance jet families. The Fluidix ST body used on many current tubs isn't documented, and newer shared Jacuzzi parts use push-in grommets. Nothing shows glued bodies.

Applies to: All series

Why it matters, and how to check it

Turn the outer dial on each jet.

The owner's manuals tell you to turn a jet's outer ring to raise, lower or shut off its flow, and to rotate the center disk to change the stream. At least six have to stay open per system so the pump and filter work properly. Air is set per group, not per jet.

Applies to: 680, 780, 880 and 980 Series, from the 2025 owner's manuals. Not every jet adjusts; the manuals say "certain jets"

Why it matters, and how to check it

359 authorized dealers, and they do the warranty repairs.

Sundance lists 359 dealer locations in the US, and the 2022 temperature-sensor recall was repaired free through those dealers. Independent suppliers also stock Sundance-numbered parts online. The published warranty covers components but never says who must do the work or whether labor is paid.

Applies to: All models, US market

Why it matters, and how to check it

Built in Mexico.

Mexico: 680 to 980 Series spas built July 2021 to December 2022 were made in Mexico, per a 2023 federal recall.

Applies to: The recall covers 680, 780, 880 and 980 Series tubs sold July 2021 to December 2022; the company address applies to all models

Why it matters, and how to check it

Sundance Spas doesn't publish the insulation for this model. Ask the dealer.

Insulation types, explained