Went downstairs and saw my tank’s pumps were spewing bubbles and my sump was almost empty. I thought there was a leak. Thankfully I just left the fill hose in the sump which back siphoned into my 55 gallon water storage. Phew. It was a nerve racking 60 seconds when I first went downstairs. Over 300 gallons of salt water in a finished basement would have ended bad.