In the backyard or on the patio: level ground first

In the backyard, the first instinct should be to look for the flattest surface you can find. A concrete slab, a patio in good condition or well-packed ground works better than a domed lawn: once filled, the tub holds about 730 lb of water, and ground that sinks on one side tilts the wall and strains the six support tubes. Clear away stones, twigs and anything that could damage the bottom before unfolding the tub. Leave some room around it too: you need to walk around it to open the lid and reach the side drain hose.

Pick a shady corner, at least during the hottest hours: direct sun heats the black wall and the water. Shade from a tree has a downside, though, with leaves, blossoms and insects dropping in. The insulated lid handles both problems at once: closed, it keeps leaves and dust out of the water and shields the surface from the sun. Get into the habit of closing it as soon as you step out. The box also contains a thermal dust cover that complements the lid.

On a balcony or an upper floor: weight comes first

On a balcony, the real question is not space, it is weight. Full, the tub holds about 87 gallons, or about 730 lb of water, plus the weight of the person sitting in it. That load rests on a circle 33.5 in (85 cm) across; it is not spread over the whole slab. Before filling anything, ask your HOA, building manager or landlord what load the balcony can take. The answer depends on the building: do not rely on how the slab looks or on a figure found elsewhere. The same reasoning applies to an upstairs room.

If the answer is yes, decide right away where the water will go when you drain it. The side hose, with its valve, has to reach a drain: the balcony's own drain if there is one and the building rules allow it, or a nearby shower if the hose reaches it. A badly placed drain can flood the room or run down to the neighbors below. Filling a little less also reduces the load: 66 gallons, which leaves room for your body, weigh less than a full 87.

Backyard, balcony or indoors: what to check at each spot (ground, draining, sun and shade, first check)
Backyard or patioBalcony or upper floorIndoors (garage, laundry room, basement)
Ground: level, packed surface, no stones or twigsGround: level slab, allowed load confirmed by the HOA, building manager or landlordGround: level and able to bear the load, flooring protected by a tarp if needed
Draining: through the side hose to a spot in the yard that can take the waterDraining: to the balcony drain if allowed, or to a showerDraining: bottom plug over a floor drain, or hose to a shower
Sun and shade: shady corner, lid closed against leaves and sunSun and shade: shade during the hottest hours, lid closed between bathsSun and shade: no direct sun, lid closed against dust
Check first: how level the ground isCheck first: the load the balcony can takeCheck first: where the water will drain

Indoors: garage, laundry room or basement

Indoors, the tub escapes the sun and falling leaves, but water becomes the main issue. The best spot is a room with a floor drain, such as a laundry room, a garage or a finished basement: the bottom drain plug can then sit right above the grate. Failing that, set the tub up near a shower so the side hose reaches it directly. The floor must be level and able to bear the load, as anywhere else, and an older floor deserves the same question as a balcony. Protect the floor, for example with a tarp, if the flooring does not handle water well.

To drain, always use the hose with its valve, or the bottom plug over a drain, never by tipping the tub: full, it is far too heavy, and the support tubes can slip if you tilt it. When it arrives, a 24-hour leak test, with the tub filled on a protected floor, lets you spot any leak before your first plunge. Two repair patches come in the box.

Summer: slowing down how fast the water warms

In summer, the water in an insulated tub warms up, especially in the sun: it does not hold the cold like a tub connected to an electric chiller, which this model does not have. The useful habits are simple. Keep the lid closed between baths, set the tub in the shade, away from a slab that has baked in the sun. Add ice just before you get in rather than hours ahead. No reliable figure can say how long the water stays cold: it depends on the air, the ground and the sunshine.

To estimate the ice, a physics calculation gives an order of magnitude. For 66 gallons of water at 68°F, you need about 29 lb of ice to bring it down to 59°F, about 48 lb for 54°F and about 61 lb for 50°F. These values ignore losses to the air, the ground and the sun: in practice, you need more. A bath thermometer, which you provide, lets you check the temperature before you get in.

Winter: never let the water freeze

The supplier states a service range of -4°F to 140°F for the material. That figure describes the wall, not a recommended water temperature, and it does not mean the tub can stay full through a hard frost. The maintenance rule is clear: the water must never freeze in the tub. As soon as the forecast calls for a hard freeze, drain the tub through the hose or the bottom plug, let it dry completely with the lid open, then fold it down.

Folded, it fits in its zipped carry bag of about 29.5 x 17.3 in, which goes in a closet, a basement or a car trunk. Drying it before folding avoids storing a damp wall. Between cold spells, nothing stops you from setting it up again, since one person can assemble it without tools. Throughout the season you use it, change the water regularly too: the supplier advises doing so every 10 to 15 days.

Outdoor safety: lid, children and never alone

An 87-gallon tub in a backyard, on a patio or on a balcony is a drowning risk for young children. A US federal product safety agency points out that drowning is the leading cause of death for children ages 1 to 4, and that bathtubs, buckets and spas in the home are part of that risk. Hence simple rules: lid closed as soon as nobody is in the water, tub drained when nobody can watch it, and never a child nearby without an adult. The tub is not for children.

For the bath itself, never be alone: someone present and attentive stays nearby. Get in gradually, breathe calmly, keep your head above the water and start short, 1 to 2 minutes, getting out at the first sign of discomfort. No alcohol, drugs or medication that makes you drowsy before or during the bath. If you want a tub ready to set up, the Ice Bath Tub shop sells a single model, this foldable insulated tub with a lid, as a complete kit (what's in the box: the tub and its 6 tubes, lid, dust cover, pump, cushion, drain, patches and carry bag), shipped free from stock in your region.

Frequently asked questions

Can you leave the tub outside all year?

The supplier's stated range for the material runs from -4°F to 140°F, but the rule that matters in winter is about the water: it must never freeze in the tub. A simple plan is to leave it set up during the warm season with the lid closed, then drain it, dry it and store it folded in its bag before the hard freezes arrive.

Can you really set it up on a balcony?

Yes, if the balcony can carry the load: about 730 lb of water when the tub is full, plus the person. That capacity depends on the building, and it is up to the HOA, building manager or landlord to tell you what is allowed. Until you have that answer, do not fill the tub, and plan where the water will go when you drain it.

What about rain and leaves?

The insulated lid, closed between baths, keeps leaves and dust out of the water, and the thermal dust cover in the box adds a second layer. The outer wall is PVC-coated nylon, which sheds water. If debris gets in anyway, remove it before your bath, and change the water regularly, every 10 to 15 days according to the supplier.

Sources

Our guides are based on the supplier's listing and public documentation. We have not tested the tub ourselves.