Vacuflush head - pump out question?

mattie

So we allow #1’s in the head. Last night I myself was taking a wizz & looking down at the toilet seat back there is small instruction sheet. It says for pumpout - that you are supposed to shut off power to all house systems then fully open & lock the toilet ball valve somehow with the foot pedal. Then proceed with pumpout.
In past, I always just hooked up & sucked out. Never prepped the toilet beforehand.
Guess I’ve been doing it wrong or ???

Liberty44140

Everyone I know with a vacuflush which is a dozen or so does it your way..,, just attach and suck 

kordo

Be careful of your tank collapsing.  I follow the instructions and also have a tank saver relief valve.  Previous owner did not and the tank had to be replaced.

Dirtythirty

I think there is a WHOLE BUNCH of people out there who that have been doing it wrong if that's the case.   I've never seen that decal, but I will check if one exists.   I absolutely can see the point  of the possibility of your tank collapsing in on itself unless there is a thru and thru passage for the air to pass.  Replacing a holding tank is NOT what I would want to do.    I really don't know of anyone who doesn't just "attach and suck". 

mattie

Never seems to get to a point where you get to know everything related to boats. Good to have the forum.....saved my bacon a few times.

As per instructions - makes sense to lock the ball valve in the open position, power down & let the pump out do its thing. My venting is good & installed a 'big orange' waste tank filter this season. (built in air bypass valve - great idea BTW)