Loud explosion while backwashing black tank
Today I was doing my regular duty of emptying/backwashing the black water tank. I had emptied both the grey and black tanks and was in the process of backwashing the black tank. Now I know it says not...
Forum Discussion
wagonmaster2 wrote:
I understand you should always open the fresh water fill inlet on the side of the RV if filling the tank from the city water hook-up. This is supposed to keep from pressurizing the water tank and doing damage.
Maybe I'm missing something, but I see no way this would help prevent pressurizing the black tank regardless of the method/source you are using to fill/flush it. They only way is for the vent not to be venting by being lower than the water level in the black tank or being blocked by an obstruction.
Regardless, the point about not overdoing or obsessing over getting it that clean is an excellent point IMO.
Larry
