Bestway SALUSPA Manuel De L'utilisateur page 16

Air Valve Check (for spa with quick inflation/deflation valve)
Always check the air valve carefully before inflation to ensure there is not an air leak.
If the air valve is loose, use the provided wrench to fasten the air valve following
these steps:
With one hand, hold the backside of the air valve from the inner side of the spa wall
and turn the wrench clockwise.
NOTE:
1. Do not over tighten.
2. Do not adjust the air valve connector when the spa is in use.
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