Okay well I just did the water pump last night and took it out today. There is something blocking the system! The alarm went off twice today, once before I knew there was an issue and once after I thought it was solved. It'll pee great at idle but when I get up to higher RPM, it'll plug up. Then I'll reduce RPM back to idle and it's still plugged up. The problem was first noticed after scraping through some of the bottom (negative low today) at idle and it got plugged up. I tried the high test line trick and it temporarily worked but that didn't last long. I got back home and pulled the lower unit. I then vacuumed, back-flushed, and anything I could think of to the LU and water pump. No help! It keeps clogging for some reason... So...was are my options here?