The outside air temperature along with the temperature of the water in the spa can help speed this up.
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1pc Pool Cleaning Filter Element For Lay Z Lazy Spa Pool Miami Vegas Monaco Cartridge Filters VI Garden Spare Parts
Aliexpress UK
The Lay-Z-Spa Miami Airjet is a portable inflatable hot tub suitable for 2-4 people. This round-shaped tub features a vinyl lining and an air system jet type for energy-efficient heating. It includes a filter pump system, adjustable jets, an energy-saving timer, and a control panel for easy maintenance. The black colour adds a sleek and stylish touch to this convenient and easy-to-install hot tub, perfect for relaxing in any outdoor space.
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6pcs for Lay Z Lazy Hot Tub Spa Pool Miami Vegas Monaco Cartridge Filters VI Outdoor Garden Spas Pool Filters Cleaning Tool
Aliexpress UK
It works just fine for weekend use / away. If to set up for a longer run, then, it needs a top up which could be done using a portable air pump. Also, drainage valve is partial broken (see picture) but doesn’t affect much of its function.
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1-10pcs Replacement Swimming Pool Filter Fit for Bestway Flowclear Size VI Filter Cartridge Lay-Z-Spa - Miami Vegas Palm Springs
Aliexpress UK
Unlike earlier Lay-Z-Spa models, which have a separate interior liner and exterior wall, the Miami is designed with an all-in-one inflatable liner and outer wall.
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1-10pcs Replacement Swimming Pool Filter Fit for Flowclear Size VI Filter Cartridge Lay-Z-Spa - Miami Vegas Palm Springs
Aliexpress UK
Ensures that filter pump operates efficiently.
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1-5 set Connector Seal Gasket Set Silicone Seal Repair Kits for Miami Milan Cancun Havana Lay-Z-Spa Helsinki Pool Accessories
Aliexpress UK
The highly popular Miami AirJet is our most affordable round hot tub. The Lay‑Z‑Spa Miami AirJet, with its contemporary black and white design, is the perfect space to revitalise the body and mind. Up to 4 people can sit back and experience the benefits of hydrotherapy through the soothing 40°C water and invigorating all-surrounding 120 AirJet massage system that releases thousands of tiny therapeutic bubbles. With a range of premium features as standard, such as Freeze Shield and the power-saving timer, the Lay‑Z‑Spa Miami AirJet is a hot tub you can enjoy any day of the year.
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1-10PCS Replacement Swimming Pool Filter Fit for Bestway Flowclear Size VI Filter Cartridge Lay-Z-Spa - Miami Vegas Palm Springs
Aliexpress UK
The Lay-Z-Spa Miami AirJet Inflatable Hot Tub Spa is a portable and easy-to-install option for relaxing with 2-4 people. This round hot tub features an air jet system for a soothing massage experience, and comes in a stylish brown colour. The vinyl lining ensures durability, while the energy-saving timer and adjustable jets add convenience to your spa experience. Perfect for all water types, this Lay-Z-Spa model offers a comfortable and luxurious way to unwind in your own backyard.
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Replacement Swimming Pool Filter Fit for Pump 58381 Flowclear Lay-Z-Spa - Miami Vegas Palm Springs
Aliexpress UK
When I say the hot tub is like new it’s immaculate. Well worth the £300.
eBay
1PC Pool Filter Pump Cartridge for Bestway VI Compatible with Lay-Z-Spa Miami Outdoor Garden Pool Water Sports Pool Accessories
Aliexpress UK