Do any freestanding bathtubs have hydrotherapy built in?

No Ella's Bubbles bathtub is a true freestanding tub, yet every Ella walk-in tub has hydrotherapy built in at the factory, and the tub stands on its own stainless steel frame and leveling legs rather than relying on the walls for support. That is why a hydro massage tub can sit in a corner, against a single back wall with both ends open, or even in the middle of a large bathroom, as long as a short contractor-built knee wall finishes the back, which is the arrangement described in What Is a Knee Wall Behind a Walk-In Tub?. Which jets and pumps the tub can carry depends on the model and its length, so this page covers both halves of the question: how far from the wall a therapy tub can go, and which therapies each tub can be built with.

Why a Tub Full of Pumps Is Rarely Freestanding

Hydrotherapy is the very reason a therapy tub is almost never freestanding. On an Ella walk-in tub, back hydro, independent foot hydro, air massage and microbubble each get their own pump under the seat, and Ella does not use a diverter to split one pump, so every system runs together at full flow. Those pumps, the in-line heater and the cords live behind the finished front apron and its access panels, and each powered system needs its own circuit. A tub with that much equipment under it needs somewhere for the plumbing, wiring and shut-off valves to run, and it needs a finished surface for the tile flange and silicone to seal against.

Ella tubs are finished for front and end exposure only. Every model includes a finished front apron and one reversible end panel, a second end panel is available, and no Ella model has a factory cover or back panel for the side opposite the door. Wherever that back does not meet an existing wall, a framed knee wall, also called a pony wall or half wall, finishes it. The knee wall is what lets a walk-in tub with hydrotherapy stand away from the wall while still looking finished from every side you can see.

How a Hydrotherapy Tub Stands Away from the Wall

Because the tub carries its own weight on its frame, the knee wall has a lighter job than a structural wall. It hides the unfinished back, carries plumbing, wiring and any wall-mounted grab bars, and gives the tile flange and silicone a surface to finish against, exactly as an alcove wall would. Your contractor works through the layout in this order:

1. Frame the knee wall to the finished height of your model.
2. Run the drain under the tub if the house drain is on the far side of the room.
3. Place outlets and shut-off valves within reach of the tub's cords and supply lines.
4. Level the tub with every leg touching the floor.
5. Complete the pre-installation water test, and only then close the wall.

Where both ends of the tub are exposed, add the second end panel for a finished look. It can be included on your order through your Ella dealer or the team at (800) 480-6850, or requested later. Whatever the layout, keep the front apron and its access panels reachable, since the pumps, heater and cords live behind them, and do not insulate around the equipment. Finish the knee wall and any tiled side with a tile flange and silicone at every joint, and photograph the framing and shut-off locations before the wall closes. The same rule applies to every Ella walk-in tub, including the LayDown tubs, which come with a covered front and one side panel and need at least one wall or a framed enclosure behind them.

Which Tubs Carry Which Therapies

Ella tubs are ordered with one of six therapy packages: Soaking, Hydro, Air + Hydro, Hydro + Microbubble, Hydro + Independent Foot Massage, or Air + Hydro + Microbubble. Any package with two systems is a dual massage package and includes the LED chromatherapy light. Because every system has its own pump under the seat, the bigger the tub, the more therapies it can carry: compact 52 inch tubs take two, the Royal, Monaco, Transfer32 and Transfer60 take three, and the large single-seat and two-seat frames take all four. The table uses only figures and packages printed in Ella's published guides, and Which Therapy Combinations Fit Which Tub lists every pairing model by model.

What the differences mean: if you want hydro jets, air massage and foot massage in one tub, the walk-in models are where those systems live, and the longer the frame, the more of them it can carry, from two on a 52 inch Elite to all four on the Big4One, the ShaK and the two-seat tubs. If you want the look of a conventional tub, the Solo and Fiji are open basins you climb into over the side, so they are the closest Ella comes to a standard tub with therapy, but they are alcove tubs and the therapy named for them is Infusion microbubble. Any of the walk-in tubs can stand away from the wall behind a knee wall, so the knee wall, not the tub, is what changes with your layout. The two conventional tubs are compared with the walk-in models in Are There Differences Between Standard Bathtubs in Size and Design?.

What Is Built in, and What Must Be Chosen at Order Time

The Elite video shows the therapies in action on Ella's most popular walk-in tub: strategically placed jetting, large multi-function buttons, three speed air massage with auto purge, adjustable hydrotherapy massage with an inline water heater, the chromatherapy light that comes with the dual massage package, and ozone sterilization keeping the hydro system sanitary. Here is what each system means for you:

• Hydro massage runs water through the body jets with its own pump, and the in-line heater holds the bath temperature while the pump runs; it never heats cold water.
• Air massage is a three speed system with auto purge, which blows the air lines clear after your bath.
• Infusion microbubble fills the water with billions of tiny oxygen-rich bubbles released through a single jet, switched on and off with one button. There is no separate detox system in the lineup, so this is where the detoxifying benefit comes from.
• Independent foot massage gives the foot and calf jets their own pump and their own intensity dial, so you can fill only the footwell and enjoy a foot spa without filling the whole tub. On these builds the in-line heater is attached to the foot massage pump. What Is Independent Foot Massage on a Walk-In Tub? lists the models that offer it.

All of this is built in at the factory. Microbubble and the independent foot pump cannot be added to a tub later, so decide on the package with your Ella dealer or the team at (800) 480-6850 before the order is placed. Triple packages that combine air, hydro and independent foot massage require two dedicated GFCI 120V 20A outlets, which matters when the tub stands away from the wall, because those outlets are placed inside the knee wall before it closes. Never start a pump until its jets are under water, because a pump run dry is permanently damaged and not covered by warranty.

The Seat Is Part of the Therapy

A standard bathtub asks you to step over the rim and lower yourself to the tub floor. A walk-in tub replaces that climb with a door in the side, a low threshold and a seat that is part of the tub itself, so the jets are positioned around a seated bather rather than someone lying flat. Ella's guides list a 17 inch seat height on most models, and the Elite pairs its 22 inch seat with a removable backrest and a removable swivel tray. Which models shape the seat for which bather is covered in Which Bathtubs Come With a Built-In Seat for Comfortable Bathing?. When you plan a therapy tub away from the wall, plan the seat side first: the door, the deck-mounted faucet with its pull-out hand shower and the grab bars all face the room, and the knee wall goes behind the back.

Watch: The Ella Elite: Luxury Walk-In Tub Built for Comfort, Safety & Independent Bathing | Ella’s Bubbles with chapters and a full transcript.

Related Guides

• Can the Tub Be Freestanding? Exposed Ends, Second End Panels, and Knee Walls
• Common Installation Questions: Tile Order, Leveling Legs, Subfloor, Panels, Drain Size and the Outdoor Test

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