finaddict August 28, 2018 Share August 28, 2018 My esk75 hob skimmer is not acting right... I can get it to foam up good by plugging the air tube and clearing the trapped air. When I release the tube it builds up good foam and appears to work fine. A few hours later the foam is gone and the chamber is just turning water but there is no foam? Any ideas? Link to comment Share on other sites More sharing options...
Origami August 28, 2018 Share August 28, 2018 Have you checked to make sure that the venturi is not clogged with calcium/salt build up? Link to comment Share on other sites More sharing options...
Big Country August 29, 2018 Share August 29, 2018 One of my old skimmers the venturi would get clogged. Get a cup of hot water and put the airline into the hot water to let it suck through the venturi, will usually clear them out Link to comment Share on other sites More sharing options...
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