gwkiwi
Guru
Yesterday at Aqua Harbor Marina in MS the local dock hand earned his tip and I wanted to pass on his great solution for pumping out, especially if you have a lot of lift from the black tank to the outlet cap like I do, ie 10'
After placing the suction head to the outlet and before turning it on, have a fresh water hose with you running water lightly, right above the pump out tube and then turn on the pump.
The water circulates and covers any air gaps around the end of the pump nozzle and makes a secure vacum, thereby allowing the pump to work at 100%.
I apologize in advance to those who already knew this but after owning many boats in many places thought this was worth passing along.
After placing the suction head to the outlet and before turning it on, have a fresh water hose with you running water lightly, right above the pump out tube and then turn on the pump.
The water circulates and covers any air gaps around the end of the pump nozzle and makes a secure vacum, thereby allowing the pump to work at 100%.
I apologize in advance to those who already knew this but after owning many boats in many places thought this was worth passing along.