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Have you tried twisting the fishtape when you hit the elbow? (This sometimes works - turn the whole reel 5 - 10 times while pushing the wire into the pipe)

If you can isolate that line at the pump , wrap a rag around the end of a garden hose and 'blast' water backwards through the pipe. Similarly, there is a product called A Drain King that attaches to a garden hose and sometimes works.

If water won't do the trick, try air, blown from the pump side of th4e pipe. Some shop vacs have a blow port. If you can get an expandable rubber winterizing plug with a Shrader (sp?) or tank valve (the fill stem on a tire) you can use a compressor or a bicycle tire pump to force air into the pipe.


Good luck with this, please let us know how it works out.