Ive notice when i turn my filter on i have water coming out my backhose. Normally isnt that suppose to suck air and my water glass never gets dirty to know to back wash. Ive lost alot of water beause of this please help 
I also still have sand in my pool its new installed but thought after we swi it would go away. Its more where the water jets out on ground
Thank you for contacting Inyo. What is the make and model of the filter?