Hey guys, so I am looking for some advice on troubleshooting an air leak. I originally had a small air leak at the intake of the pump but was able to fix it with some thread sealant. Now there isnt any air visible through the strainer basket, but when I shut the pump off the filter begins gurgling and filling with air. There isn't any air coming through the strainer basket when the pumps off so the air leak must be coming after that. Does it sound like a pump seal or ??? Any other suggestions where I should look? Dont think it is possible but could the back flow valve on the filter some how be leaking although it doesn't leak under pressure.