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waste coming out port vent when flushing head
robb huff
#1 Print Post
Posted on 05/16/17 - 9:58 AM
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Joined: 10/03/16

Riddle me this.

My holding tank (clean water thank goodness) is evacuatng out the port vent, directly upon flushing the vacu-flush. Port side has two vents, evacuation comes out the 'forward of the two vents'

My BW manual shows the 2 port side vents to be 'Port tank and Center tank vents" however, later in the manual a diagram also shows the forward vent on port to be the waste vent....which must be accurate as this is where the water is flushing out, under pressure from the flush.

Also found what appears to be toilet over-flow in the forward bildge, which evacuates properly off the starboard side.

Recent work:
- Had Center aux tank drained and closed
- Had 'vent guards' installed on both sides to prohibit sea water from sloshing up, into a fuel tank vent (good idea).
- Had boat repowered professionally

Robb Huff
2004 Conquest 305
San Diego CA

 
JRP
#2 Print Post
Posted on 05/16/17 - 12:33 PM
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This is usually a sign that the holding tank is full (or even overflowing.) Remedy is to pump tank out.

 
jollyrog305
#3 Print Post
Posted on 05/17/17 - 11:09 AM
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What does your holding tank level indicator say?

the forward bilge should only be for the bilge area itself and the "enclosed" pump within is for the head floor drain (from taking a shower) - it should not have anything to do with the toilet - only greywater

the sink should discharge directly overboard on the starboard side

 
robb huff
#4 Print Post
Posted on 05/18/17 - 10:17 AM
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JRP wrote:
This is usually a sign that the holding tank is full (or even overflowing.) Remedy is to pump tank out.



you nailed it. Turns out the level indicator is way off as it showed 'low' but was full.

thanks!

 
robb huff
#5 Print Post
Posted on 05/18/17 - 10:25 AM
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Posts: 25
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jollyrog305 wrote:
What does your holding tank level indicator say?

the forward bilge should only be for the bilge area itself and the "enclosed" pump within is for the head floor drain (from taking a shower) - it should not have anything to do with the toilet - only greywater

the sink should discharge directly overboard on the starboard side


...tank level indicator showed 'low' but was way off. prob fixed with emptying. thanks for your help

 
jgortva
#6 Print Post
Posted on 05/18/17 - 10:30 AM
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Holding tank gauges are notoriously inaccurate and prone to sticking in older boats. especially if the head is used for more than just liquids and especially if toilet paper is used, even if it is marine toilet paper. I would recommend putting some Rid-X in the tank, leave it for a few days, then take the boat out to shake up your holding tank and then pump out and rinse 2-3 full holding tanks worth of water, preferably hot if you can, for best results. If this doesn't loosen up the holding tank sensor and make it work again, then it is probably in need of replacement.

Jim G.

 
robb huff
#7 Print Post
Posted on 05/19/17 - 8:53 AM
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10-4 and thanks

 
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