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Air Control Air Control Air Control Questions In-ground Spa Air Control Value no pressure? I have an in-ground spa, and the air control valve on the top of the spa has no pressure. When we first used it in November, when you turned the valves, it would hiss with air pressure and create a lot of bubbles in the spa. Now there is nothing. Just a hollow sound and water barely comes out of the jets. There are no blockages in the pump, and everything…