Hopefully this isn't too far off topic but I really respect the vast amount of knowlege from many here. We found a very narrow, very twisty channel through the cattails. Maybe 5-6 feet wide and close to a mile long. What started out as a challenge just to make it through turned into a stop watch competition amoung us jet skiers. It is only doable after a hard rain due to a few shallow spots and weedy spots. This is the only safe channel we ever found due to the lack of trees and such. I would like to deepen a few spots and remove weeds also. I have a 4" diesel trash pump that can handle 2" solids. I planned on rigging up a boom on the front of my flat bottom river boat and sucking the bad spots away and blowing it into the cattails away from the channel. Now I have been told a better way is to draw clean water through the pump and the in the 4" dicharge end, place a 4" pipe at an angle to draw or siphon the sand and weeds only through a short section, saving the trash pump from seeing all the abrasive sand and such. I doubt you would place the sand pickup pipe at a 90 degree angle and I'm thinking about a 45 degree angle but that would be a guess. I can't find any info on this anwhere so here I am on this forum hoping for an answer. Can anybody provide the info I need? If anybody is interested I have a gopro video of my fastest time through the channel (2:36) only one and a half seconds faster than the next guy.