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Water seal tank standard

1, the connection parts are tight and firm, and there is no leakage.

2. The liquid level of the sealed water tank (fresh water or salt water) must be kept between 500mm and 700mm.

3. Fresh water can be used when the temperature is higher than 5℃, and salt water must be used when the temperature is lower than 5℃ (ρ≥ 1. 14g/cm3).