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Old 08-14-2020, 10:32 AM   #1
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Bilge water a stunning color turquoise

On the list of What Not to Expect this one is up there pretty high.
The Nova bilge is forward in galley and usually has a few inches of water that I periodically add a little vinegar to but today it has a distinct color.
I havenít been using any different shampoos, as the other second bilge, which takes shower gray water can over fill into the galley area bilge forward. I donít use any black water treatment presently, and there is no sewage smell.

Iíve had the boat several years now and never seen this, actually never seen this color except in thermal pools in Yellowstone.
Does anyone have any prior experience with the blue bilge?
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Old 08-14-2020, 11:01 AM   #2
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Could be an oxide of copper. Look for hot wires in the bilge water or corroded through hull fittings, etc.
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Old 08-14-2020, 11:44 AM   #3
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What color is the antifreeze? Stored fluids ditto.
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Old 08-14-2020, 11:51 AM   #4
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Lucky you you have a lagoon aboard!

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Old 08-14-2020, 11:54 AM   #5
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What does it smell like?
Rub some between 2 fingers for lubricity (soap, oil, ect).

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Old 08-14-2020, 12:24 PM   #6
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A mystery we all want solved. Keep us posted please. Is the second bilge/shower showing any of this color?
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Old 08-14-2020, 12:42 PM   #7
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My first thought was Ski's.
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Old 08-14-2020, 01:08 PM   #8
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IMO you need a shower sump. Its small volume allows the pump to get out most of the water.
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Old 08-14-2020, 06:15 PM   #9
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IMO you need a shower sump. Its small volume allows the pump to get out most of the water.
This.

Letting showers/sinks overflow into bilges leads to nasty smells. Attwood, Rule and others make a variety of sizes. If I had to choose I'd go with one that had the pump outside of the box. But I've had boats in the past with the small Attwood sump that has a pump inside and they provide the same effect. It's just nastier cleaning up the sump come spring time if any nasty bits were left to fester while laid up for the winter...
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Old 08-14-2020, 06:40 PM   #10
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Yes Sure looks like copper.
I noticed the bilge pump wires poorly wrapped with tape. Those connections because of the damp location should be sealed in heat shrink tubing. Another future boat job.
One other thought. Are there any batteries that could have leaked down there? Don’t put your finger in it just in case it’s acidic!
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Old 08-14-2020, 07:07 PM   #11
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Definitely add a shower sump. Even then they will stink if you donít clean them often enough or at least add some gray water treatment to the sump.
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Old 08-14-2020, 07:14 PM   #12
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Is your shower pan below waterline?
If not why not gravity feed it straight through the side?
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Old 08-14-2020, 07:18 PM   #13
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Lots of advice, anecdotes, and opinions as usual. My open shower sump does not stink, never has in six years of ownership, four years as a full time live aboard. I occasionally, very occasionally, add some No-Flex Digestor, the additive many use in their black water tanks. No soap scum and clear water is the result. Perhaps my experience is the exception although I can't think of a reason why it would be.
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Old 08-15-2020, 04:09 AM   #14
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I wouldnít of thought that copper oxide would be held in suspension and so evenly dispersed. Shampoo would foam if you put a sample in a jar and shake it vigorously. Nitroglycerin on the other hand ......
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Old 08-15-2020, 04:57 AM   #15
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I would guess it's antifreeze leaking from your engine or generator. Or heating system if you have a hydronic system (probably not).
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Old 08-15-2020, 08:15 AM   #16
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I would guess it's antifreeze leaking from your engine or generator. Or heating system if you have a hydronic system (probably not).
Give it the old 'hands on check'. Trace out the hoses with your bare hand, feeling for leakage. Check the hose clamps tight.
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Old 08-15-2020, 08:57 AM   #17
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Lots of advice, anecdotes, and opinions as usual. My open shower sump does not stink, never has in six years of ownership, four years as a full time live aboard.
I'm reminded that cat people don't think the litter box stinks, either. Though with the fancy litter-robot we've got for ours you're really hard-pressed to pick up much.

Not saying that's the case for you, but in my experience standing gray water from a sink or shower WILL stink.

Whether one notices, or if the smell rises to the level of bothersome, well, that's another question.

I don't expect a boat to be totally without various odors. I just find it's best to keep things as neutral smelling as possible for WHEN something DOES leak and you need to find the source...
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Old 08-15-2020, 09:37 AM   #18
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Night watch, if you don't have an inspection plan in effect. The easiest test is to empty and rinse both bilges until clean. Then give it some time to see if it happens again. Copper does produce a green similar to what you're describing so its the best guess if it continues to happen. With age these bilge pumps can get a tiny bit of water into the motor, start corrosion process and puff up, thus splitting the motor case on the pump. Pull the pump from the strainer and inspect the bottom for signs of failure.
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Old 08-15-2020, 09:53 AM   #19
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Night watch
Again, what color is your antifreeze?
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Old 08-15-2020, 10:10 AM   #20
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Night watch
Again, what color is your antifreeze?
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