Sorry, for some reasons I am not getting notification when someone posts in this forum. Saltcreep in the venturi is common especially during the winter months when the home environment air is dryer. Some users pour RODI water down the airline several times a week to keep the creep from forming. I have modified my skimmer so that the water for my ATO enters the venturi. It stays clean as a whistle now and is much appreciated at this time of the year.

