A swim spa that doubles as a lap pool and a hydrotherapy zone is one of the more demanding line items in an outdoor project: it arrives as a shell packed with pumps, jets, controls and lighting, and it has to land on a prepared base with the right power and drainage waiting for it. That is why it is worth putting the questions to your supplier before the order is placed, not after the container is booked. The Outdoor Swim Spa WS-S12-T is a useful example to work through, because the catalogue listing for this model is detailed enough to show exactly where clarification is still needed.
Start with the shell footprint, not the features list
The catalogue entry for WS-S12-T shows overall dimensions of 11740 x 2200 x 1470 mm. Read that as an envelope for planning, and ask two things on top of it: the clearance you need around the shell for access panels and steps, and the finished floor level the unit is expected to sit at once insulated and filled. A 2.2 m wide shell fits a narrow side yard or a terrace run, but the water-filled weight and the access route for delivery are separate conversations from the plan dimensions.
The model that sits next to it in the range is worth naming here, because it is where specifications drift. The listing for WS-S12 carries the same 11740 x 2200 x 1470 mm outline and the same jet count, yet the swim training system is not listed for it, while WS-S10-T is a shorter shell with a different jet and lighting count. When you request a quotation, ask for the specification to be restated against the exact model code you are ordering, and do not assume the brochure image and the specification block describe the same configuration.
Ask what is actually included in the configuration you are being priced
For WS-S12-T the site lists one control system, one swim training system, two water pumps, one filter pump, a total of 73 jets, one LED light with 50 small LED lights, and a total power figure of 7.65 kW. Treat those as the catalogue position for the standard configuration and confirm each item on your proforma invoice. Jet counts in particular change meaning depending on how they are zoned and which jets run off the water pumps versus the swim unit, so ask for a circuit-by-circuit breakdown rather than a single number.
The options the catalogue names for this range — UV sterilisation, additional water pumps, heat pumps, sand filtration, insulation and steps — are the practical places where two quotations for the same model diverge. Insulation and heat pump specification drive what the unit costs you to hold at temperature in a cool season; sand filtration and UV change the chemical load you carry day to day. Ask for these priced as line items you can switch on or off, and ask which of them are fitted at the factory versus supplied loose for site installation.
Power and commissioning is where orders stall
Total power on a data sheet is not an electrical specification. Before you order, put these questions in writing: what supply voltage and phase does the configuration require, what breaker and cable size does the manufacturer recommend, where is the isolator expected to sit, and who signs off the connection at the site? A 7.65 kW figure tells your electrician the scale of the load, not the installation detail. Ask also whether the control system is set up for the local supply at the factory or configured on arrival.
Drainage, base preparation and a filling source are the other three site items. Confirm whether the supplier expects a concrete slab, a reinforced deck, or a compacted base, and what tolerance is acceptable; get the weight of the filled shell so your builder or engineer can check the structure; and agree who is responsible for commissioning — filling, balancing the water, testing the jets, the ozone system and the swim unit, and handing over the control system with an operating walkthrough.
If the space is not a rectangle, ask about customisation early
Plenty of villa and resort terraces are curved, set into a raised platform, or bounded by an existing structure. Where a fixed shell size does not suit the site, ask what can genuinely be changed. Santerson's range includes a Customizable Shape Outdoor Spa built on an acrylic shell with square, round, oval and curved formats, which is the route to take when the geometry of the space is the constraint rather than the equipment list. Ask for drawings and a production schedule before payment on anything bespoke, since custom shells change lead time and packing.
Close with delivery, installation and support
Freight for an item this size is the part you least want to improvise. Ask how the spa is packaged and loaded, which port or door it is delivered to, and who handles import clearance and the final leg to site. Santerson describes turnkey delivery through its Logistics & Door-to-Door Delivery service, and installation, inspection and after-sales support as part of the same scope — get the exact division of responsibility in writing for your order, along with what the warranty covers for pumps, shell, controls and lighting, and how spare parts are supplied.
A short checklist to send with your enquiry
- Confirm dimensions, base tolerance and filled weight for the exact model code.
- Get the equipment list itemised: pumps, jets and zoning, filtration, ozone, UV, lighting, control system.
- Ask for electrical requirements — voltage, phase, breaker, cable, isolator location.
- Price options separately: heat pump, insulation, sand filtration, steps, extra pumps.
- Agree freight scope, delivery point, installation, commissioning, warranty and spare parts.
Send those questions with your drawings and the site photos, and you will get a quotation you can compare line for line instead of a price for a photograph. If you are evaluating the wider range, the Swimming Pools and Swim Spas category page is the place to see the shell sizes and configurations side by side before you shortlist.