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Old 05-16-2018, 05:41 AM   #61
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Here is the one I referred to and can say they work excellent...better than threaded adapters IMO

The flange sucks down on the deck ftg and it is diddicult to break lose.

m.go2marine.com/product/212694F/edson-quick-clamp-pump-out-nozzle-w-splash-guard.html
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Old 05-16-2018, 07:31 AM   #62
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As mentioned in post #45 I found it quite easy to replace the original "odd" threaded waste deck fitting with a standard size from a marine store. the screw in nylon Banjo adapters are used in farm chemical systems and can be found at tractor supply or other hardware places, inexpensive.
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Old 05-16-2018, 08:22 AM   #63
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Hears a thought hook up the pump out line to the over the side dump macerator line then turn the dump macerator on while vacuuming. And leave the cap off the pump out.
The macerator sucks from the very bottom of the tank so it should empty the tank completely.
Sorry Gaston, but that wouldn't work. The pumpout line also goes to the bottom of the tank, so unless the pumpout line and the overboard discharge line are connected to two separate tank fittings instead of the usual y-valve or tee in the pumpout line, the macerator couldn't get any more out of the tank than the pumpout, and would actually create an obstruction in the pumpout line that would prevent the pumpout from pulliing anything out. And leaving the pumpout cap open wouldn't help either because that line also goes to the bottom of the tank.

However, you may have accidentally stumbled onto something: If there's only a tee in the pumpout line, or the y-valve is open to the macerator during pumpout, depending on how high the tee or y-valve is in the discharge line, AND IF the overboard discharge thru-hull is above waterline, it MIGHT explain why the pumpout can only empty the tank to that point before starting to suck air that would prevent it from pulling any more out.

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Old 05-25-2018, 07:58 AM   #64
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OP here -- I used TankTechsRx. I left the product in the tank for a total of 23 days. It is now my pleasure and high honor to announce that yesterday's pump-out was successful and normal. My holding tank is empty. Is that great news or what?
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Old 05-25-2018, 08:13 AM   #65
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This is the solution to your problem. seaLand nozall Note that there are several different sizes, so you'll have to measure the diameter and the TPI (threads per inch) to sure of getting the right one.

Peggie

Oh dear! Sticker shock! You can get the exact same fitting at Northern Tool for about $5
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Old 05-26-2018, 06:46 AM   #66
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OP here -- I used TankTechsRx. I left the product in the tank for a total of 23 days. It is now my pleasure and high honor to announce that yesterday's pump-out was successful and normal. My holding tank is empty. Is that great news or what?
Woo hoo!



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Old 05-26-2018, 07:14 AM   #67
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Greetings,
Mr. ld.



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