Yes, it is highly recommended to have a sturdy foundation for your portable spa, and a concrete slab is the perfect solution. Here are some reasons why:
Level surface: A concrete slab provides a level surface for the spa to sit on, which helps to distribute the weight of the spa evenly. This is important because if the spa is not level, it can cause issues with the water draining or the jets not functioning correctly.
Durable and long-lasting: Concrete is an extremely durable material that can withstand the weight of the spa and any movements or shifting that may occur. With a proper installation, the concrete slab can last for many years without needing repairs or replacement.
Reinforced strength: A reinforced concrete slab that is at least 150mm thick can provide the necessary strength to support the weight of the spa and any occupants. This ensures that the spa is safe and stable, and reduces the risk of damage or injury.
Compliance with regulations: It is important to ensure that the foundation for your portable spa meets any local regulations or requirements. A concrete slab is often approved by authorities and is a safe choice for your spa.