I have some slow flowing drains that back up when it rains that I need to clear out. As there are no manholes or rodding points, I can only access them via the P-trap connected to an outside hopper.
I have a basic Karcher power washer that I can get a drain cleaning jet for, or I could get a Drain Snake to attach to my drill. Which should I use?
(Rods are not an option due to the P-trap.)