The water level may appear lower though because of the air pressure in the vessel. If you turn your air off the water level might rise a little. I don't know if this is the accepted practise, but I consider the water level where it's at when the air is off. Which is generally where the interface between water and foam is as well when it's producing foam, but when it's not producing foam (feed tank or whatever) the water level is considerably lower.
Not that I have the same skimmer mind you, take into account I'm speaking about my wee little bullet-1 skimmer.
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-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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