What must be done to all debris in the spa basin before use?

Before using a spa, it is essential that all debris in the spa basin is removed. This practice is critical for several reasons. First, any debris, whether it is organic matter, dirt, or other foreign substances, can harbor bacteria, pathogens, or other contaminants that may pose health risks to users. Removing all debris ensures that the spa water remains clean and safe for bathing.

Additionally, cleanliness is a fundamental aspect of sanitation standards in any facility where public health is a concern, including spas. By eliminating any litter or particles, operators can maintain a higher quality of water and help ensure that the spa's filtration and sanitation systems work efficiently. Without complete removal of debris, there is a greater chance that chemical treatments might be ineffective, leading to poor water quality and an increased risk of illness.

While other options may imply some form of maintenance or care, they do not meet the fundamental requirement of ensuring a safe and clean environment for spa users.