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When cleaning a spa jacuzzi tub, you should follow these principles: • Do not damage the equipment materials • Do not affect the nozzle structure • Do not interfere with the water circulation system • Do not leave behind residues that are difficult to rinse off

General standard: Add 60–120 ml (approximately 1/4–1/2 cup) of bleach per 150–200 liters of water. 1. Standard household spa jacuzzi tub capacity: 250–450 liters Recommended dosage: 1/2 to 1 cup of bleach (120–240 ml) 2. Larger capacity: 600–1000 liters Recommended dosage: 1–2 cups of bleach (240–480 ml)

Not necessarily, and in most cases, it is not recommended to use sand as the main support layer for a spa jacuzzi tub. When the sand loses its flatness, it will lead to uneven support at the bottom of the tub, and may even affect the stability of the massage nozzles, pipes, and base structure.

Spa jacuzzi tubs are usually designed with a higher water temperature environment to promote relaxation and comfort, but for pregnant women, excessively high water temperatures may cause discomfort.

The control system of a spa jacuzzi tub may come from different manufacturers, but in most cases, "F1" means: • Filter cycle setting prompt (Filter Cycle 1) • Temperature sensor related warning • Insufficient water flow prompt • System self-test status prompt • Low flow (Flow 1) error in some brands

LOVIA SPA spa jacuzzi tub size range: ✔ 2m × 2m × 0.8m ✔ 2.1m × 2.1m × 0.85m ✔ 2.2m × 2.2m × 0.9m ✔ 2.3m × 2.3m × 0.9m In other words, the approximate size range of LOVIA SPA spa jacuzzi tubs is from 2m × 2m × 0.8m to approximately 2.3m × 2.3m × 0.9m.

Most spa jacuzzi tubs recommend using 4mm²–6mm² copper wire, selected based on the actual current. This is significantly different from the 1.5mm² or 2.5mm² wires used for ordinary household lighting and sockets.

Does a spa jacuzzi tub always need a 220V power supply? The answer is: not necessarily. While 220V is one of the most common operating voltages for spa jacuzzi tubs in many countries and regions, it is not the only option.

In most mid-to-high-end spa jacuzzi tubs: • The inner tank uses special-grade acrylic sheets • Acrylic is responsible for molding, aesthetics, and human contact • It is a key material determining the user experience

Citric acid is a stronger acid than white vinegar, therefore it is more effective at dissolving and removing limescale. It is suitable for cleaning the internal pipe circulation of a spa jacuzzi tub because citric acid can continuously dissolve limescale during heating circulation.

In many spa jacuzzi hot tub system designs, FL2 usually represents "Flow 2 Error," or a secondary flow error message. Its core meaning is: The spa jacuzzi tub detects an abnormal water flow in the circulation system or an inconsistent flow switch state.

The core materials of a spa jacuzzi tub include acrylic, fiberglass, a metal frame, and composite panels. A spa jacuzzi tub is not made of a single material, but rather a multi-layered, professionally constructed structure, including: • Acrylic surface (such as Aristech Acrylic) • Fiberglass reinforcement layer etc.