mine did not work, hull
637, i got a new electron card to change out, now 1 tank is working the other goes full on empty tank and stays like that even when its filled up.
not good, but i can live with it, i don't drink from it anyway, i have converted one into running on the fridge cooler and keep it full al the time, the port one is for showers and food
. we have beer
and wine for drinking and sometimes some bottles of water.
my fuel tanks work perfecto.
and the cat sails