2006 Sedan Bridge 44 vacu flush problem !

zoomer2699

zoomer2699

New Member
Jun 13, 2017
14
Lake Huron
Boat Info
2006 44' sedan bridge
Engines
twin 500 cummins diesel
Need help ! / suggestions
Guest head toilet , flushes properly
After a minute or two when the pump should shut off it won’t . Replaced switch & bellows no change !!
What do we try next ?? Could it be a vacum leak ? If so where do you start looking ??
Thanks in advance for your help
Doug & Heather
 
Duckbills would be my next project. Sometimes a good long flush will clear anything that might be stuck in them
 
We actually did replace the duck bills last year and they were fine any other suggestions?
 
Have any guests on board when the problem started by any chance? Maybe they flushed something down and it's clogged?
 
Is there water in the bowl?.... if so sounds like douglee suggests.... duckbills
 
I would make sure the bowl was 1/2 full, run the pump for a 30 seconds or so by turning the guest head system on at the panel. Turn it off and flush to see how much of a suck you get to evacuate the bowl. I would then turn the system back on and run again for 30 seconds, turn it off and with as much noise as possible eliminated from the cabin listen around the base of the toilet for a slight hiss. I had the same problem on my Rinker 270 in 2004 and it was a slight leak in the toilet flush valve shaft. At the time since it was new Vacuflush sent me a new toilet base and that fixed my problem.
Good luck
Carpe Diem
 
Carpediem44DB said:
I would make sure the bowl was 1/2 full, run the pump for a 30 seconds or so by turning the guest head system on at the panel. Turn it off and flush to see how much of a suck you get to evacuate the bowl. I would then turn the system back on and run again for 30 seconds, turn it off and with as much noise as possible eliminated from the cabin listen around the base of the toilet for a slight hiss. I had the same problem on my Rinker 270 in 2004 and it was a slight leak in the toilet flush valve shaft. At the time since it was new Vacuflush sent me a new toilet base and that fixed my problem.
Good luck
Carpe Diem
Click to expand...
Thanks we will try this tactic , we have eliminated 3 major parts without success
Keeping our fingers crossed !
 
Hey Zoomer,

I would shift my focus on the components in the ER. Based on what you posted, you have new duck bills, switch & bellows, all on guest head. I'd approach this with two questions, is this a leak or clog?

Pump running for 2 min or so is clearly not normal, as it fails to build up vacuum.

I'd start with a leak theory. Review all the major components connections and the tanks. Then, shut "noisy house items" off and do the flush test, and listen. Repeat couple times to verify your findings.

If nothing obvious found, I'd switch to a clog theory by disconnecting stuff in logical order, starting at the first duckbill valve.

Just remember a simple fact that a brand new system can go out of order with a single flush, when something that doesn't belong there goes into a toilet. Uneducated or uninformed guests can make that happen very quickly.
 
Check the connection at the pump as well. If there is a crack in the hose or if it loosened up where it connects to the vacuum pump - that's your issue. I would take a spray bottle with soapy water and spray anywhere and everywhere you can.

Of course, if you fill the bowl with water and come back to all the water being gone - you have a seal issue in the bowl.
 
As part of your isolation leak check, consider purchasing one of these:
https://www.environmentalmarine.com/vacuum-tester-gauge-530002/

Then you can start isolation by disconnecting the pipe at the VG and see if the system holds vacuum. If so, move progressively further towards the toilet. It's usually around $100, but they have it for $80...
 
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