sled dog
Senior Member
Guys, my basement and perimeter drain runs 960' west to an open ditch. I have 2'-10" of fall in that distance. Normal summer, and fall, no problem. But winter and spring rains can quickly overwhelm the ditch, and then the water comes UP the basement drain and works the dog$hit out of the sump pump. The ditch comes up quick, flows fast, and then slowly goes down. Now, I understand the venturi effect in a carb, but I also know you are dealing with different pressures as the air flows thru. Speed increases, pressure drops. Because of the non compressability of fluids, is there any thing I can add or do to my outlet to allow the ditch flow to help suck the water out of the outlet pipe? I can't grasp how building a pipe venturi would help, the water pressure will remain the same, right? Or wrong? Chuck