I have been experiencing problems with my automatic vacuum, it's not very new, but seemed to work last year ok. This year not so good, I've spent around $100 in misc parts trying to repair it, as I'd like not to have to go out and buy a new one for $400-$500. I'm starting to think though my problem may be in my suction lines and not my actual vacuum. On the vacuums website under troubleshooting, it says if the vaccuum is not moving, put flow guage on to measure inches of vacuum, this will determine the length of hose that you can use. My guage read 5-7 inches, now I know I have at least 30' of hose, 20x40 L shaped pool. I was getting very frustrated, so I vacuumed manually, when trying to suck up some leaves, the suction would not pull the leaves through the hose to the basket located on my pump. Is there a way to find out if I have a leak in the suction lines, or a blockage, and if so how do you go about it?