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'...
Forum Discussion
I often close the black tank drain for a couple of minutes when rinsing the tank. Just another way of adding water to the tank. Its easier to add water with the "Tornado" when finished rinsing than going inside and filling the toilet bowl several times. Just don't get distracted and wander away.
In any case, my bathroom sink is plumbed into the black tank providing an alternate vent should the real vent get blocked.
In any case, my bathroom sink is plumbed into the black tank providing an alternate vent should the real vent get blocked.
