Lay-Z-Spa Miami AirJet (Black, 180cm)

How long does the Miami take to heat up from cold water?

The Miami heats water at approximately 1-2°C per hour depending on ambient temperature. From 15°C tap water to 40°C maximum temperature takes 12-15 hours. The compact 800-litre capacity heats faster than larger models. Using an insulating ground mat and keeping the cover on accelerates heating times.

What ground preparation is needed for installation?

The spa requires a flat, level surface capable of supporting 1.2 tonnes when filled. Concrete patios or reinforced decking work best. Place a protective ground mat underneath to prevent punctures from stones or debris. Ensure the area has access to a standard 13-amp electrical outlet within reach of the 3-metre power cable.

How often should the filter cartridge be replaced?

Replace the filter cartridge after the first 24 hours of use, then weekly with regular use. Heavy usage may require twice-weekly changes. Clean filters can be rinsed with a hose between replacements. The VI-type filter cartridges are widely available and cost-effective to maintain.

Can the spa be used during winter months?

Yes, the Freeze Shield technology enables winter operation down to -10°C ambient temperature. The system automatically heats when temperatures drop below 6°C. However, heating costs increase significantly in cold weather. Consider using additional insulation around the spa base during winter months.

What chemicals are required for water maintenance?

You'll need chlorine granules or tablets, pH increaser/decreaser and alkalinity adjuster. Test strips monitor chlorine levels (1-3ppm), pH (7.2-7.6) and alkalinity (80-120ppm). The included ChemConnect dispenser handles chlorine distribution. Change water every 4-6 weeks depending on usage frequency and bather load.

How many people can comfortably use the Miami?

Two adults fit comfortably with plenty of space. Three people works reasonably well for shorter sessions. Four people creates a snug fit suitable only for brief use. The 180cm diameter provides adequate space for couples' regular use whilst accommodating occasional guests.

What's included in the warranty coverage?

The Miami includes up to 2 years manufacturer warranty covering defects in materials and workmanship. This covers the spa shell, pump unit and included accessories. UK-based aftersales support handles warranty claims and technical queries. Warranty excludes damage from improper chemical use or physical abuse.

How do you drain and store the spa?

Use the drain valve at the base for emptying, though this takes several hours. A submersible pump speeds drainage significantly. Clean and dry all components before storage. The spa deflates to a compact size for garage or shed storage. Ensure complete drying to prevent mould growth during storage periods.