We had about 1 gallon get out of our display. I was messing with the overflow box, and caused it to lose suction. That should be the only time it will ever lose suction. As a fail-safe, I have my inlet for my return fairly close to the surface, so if it does lose suction, the tank can hold the excess, although I would lose a mag. I would much rather lose a mag than my carpet.![]()



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