When you run a vacuum cleaner/jacuzzi, stuff gets stirred up in the mix. Things get clogged fast and no water out the peehole.
2 weeks ago, Current River ramp, buddy backs me in after a good rise. Shallow water ramp full of sand from winter floods, sucked the thing full, no water out the pee hole.
I had prepped for this, backed up, jacked up the motor and popped the cork on my new cure. Little can of compressed air. Put it to the tube and let her rip. Soon I heard things perking and bubbling, then a hiss out the bottom. Fired up and peee'd a good stream. On to the river run that we had planned.
I highly recommend this for those jet runners on here.