you need to fish faster water, something about the speed of a good walk. It should have a good gravel or cobble bottom. The coarser the bottom structure, the more tackle you will lose. Use enough weight to sink to the bottom quickly but lets the weight bounce along nicely. Best line is 65lb gel spun such as Tuf Line as that will often allow you to pull the weight free when you hang up. If conditions allow, heavy slinky weights really reduce tackle loss. I made my own. Use a long leader - like 10 to 12 feet. A large hook, say #1 or 1/0, yarn in a bait loop and cast upstream. Keep a tight line to keep contact with the weight, let it swing around and once the weight rises and contact is lost with the bottom, reel in and cast again. Do that for 7 to 10 hours and you will catch fish.