Black tank flush - valves always open?
The label next to the inlet for our black tank flush says that the drain should always be open for flushing. Why is this? Is this really a concern, or is this just there to make sure somebody doesn'...
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Believe me (I know from first hand) the water WILL come up and overflow the toilet!!! The seal will keep the solids from coming up, but not the water.
From my personal experience, I now never leave the flush water running unless I'm right there...
So yes, the reason the label is there is for that exact reason.
My procedure is to turn on the flush hose, open the black tank valve, turn on the macerator. The tank will drain faster than the flush hose can put water into the tank so no worries there. When the black tank is empty, I simply open the gray tank and let the gray water run into the empty black tank for about 10 - 15 seconds and then close the gray tank. I will do that two or three more times until the water coming out of the black tank is clear. I then shut the black tank and drain the gray (while the black tank flush hose is putting clean water into the black tank). When gray tank is empty, I turn off the macerator, close the gray tank valve, shut the compartment door and turn off the black tank flush hose.
Hope this helps
Ron
From my personal experience, I now never leave the flush water running unless I'm right there...
So yes, the reason the label is there is for that exact reason.
My procedure is to turn on the flush hose, open the black tank valve, turn on the macerator. The tank will drain faster than the flush hose can put water into the tank so no worries there. When the black tank is empty, I simply open the gray tank and let the gray water run into the empty black tank for about 10 - 15 seconds and then close the gray tank. I will do that two or three more times until the water coming out of the black tank is clear. I then shut the black tank and drain the gray (while the black tank flush hose is putting clean water into the black tank). When gray tank is empty, I turn off the macerator, close the gray tank valve, shut the compartment door and turn off the black tank flush hose.
Hope this helps
Ron
