Having a hard time getting your pump to prime? You could have a clogged line. Having a clogged line can lead to poor suction back to the pump or no suction at all. It could be the reason your pool vacuum is not working like it used to. We have been very successful in locating clogs and resolving the problem. Often times we have been able to unclog lines that others could not. We have removed things such as organic matter (leaves, etc.), toys, clothing, screen spline, and electrical wires.