how many pumps does it take?

M

mchad

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Just wondering, how many "wet bowl" pumps does it take to get the "stuff" from the head to the holding tank? It's a standard Jabsco manual head, with about 10' of hose to the tank. I'd like to know so a) I don't overflush and waste holding tank space, and b) I don't underflush and allow the "stuff" to remain in the hose...

Thanks
 
We always under flush as you put it when we are going to be on the boat. I over flush just before we leave for the week.
 
For the small Jabsco manual toilet, it takes approximately 2 strokes to move the effluent a foot down the hose. So 20 strokes should do it.
 
That's the reason a lot of boats stink - not enough water being used to clear the lines. So the sewage lays in the hose between the toilet and the tank and permeates the hose. Sorry to say, there's no free lunch!
 
Please elaborate Vic. There was a lever on the manual head on my last boat. One position was for filling the bowl and the other was for flushing the waste. Are you saying fill the bowl then flush by pumping the handle 20 times or fill the bowl several times during the flushing process to evac the lines?

--EDIT the lousy grammar and spelling.
 
My guess is the lever had a flush position that let in water while flushing and a flush dry postion that did not let in water. With those kinds of heads you have to flush with the lever in the "flush wet" position for 20 times or so first before you "flush dry".

As Vic said, most manual heads you have to pump 20 or so strokes to clear the lines.
 
Pretty much what Bill said. After you've cleared the bowl, oftentimes you can switch the selector to the "dry" position and keep pumping, to push the waste the rest of the way to the tank. A manual toilet, if it is in good condition, will push the waste at least six feet or so, when in the dry position.
 
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