I'm in the Pacific NW and occasionally get seaweed clogging in the intake. First time it was overboard into the chilly waters to pull the weeds out! Very unpleasant but no time to think about it.
After some thought I found a 6" piece of hose that I can put over the fitting for the hose that goes from the strainer to engine and also fits over the end of my dingy foot pump. It needed a bit of duct tape to tighten the fit. Now when it plugs (about once every year or two) I grab my foot pump and the hose from it's spot beside the strainer. I pull the engine intake hose and replace it with the hose and foot pump, stomp on it and its clears quick and easy. Sometimes it takes a good hard stomp but always works...
After some thought I found a 6" piece of hose that I can put over the fitting for the hose that goes from the strainer to engine and also fits over the end of my dingy foot pump. It needed a bit of duct tape to tighten the fit. Now when it plugs (about once every year or two) I grab my foot pump and the hose from it's spot beside the strainer. I pull the engine intake hose and replace it with the hose and foot pump, stomp on it and its clears quick and easy. Sometimes it takes a good hard stomp but always works...