Rusty discharge from AC

[The Sandbar]

What is the best way to correct a rusty discharge from the recycle heat and air? Owning a boat with AC/Heat is a new thing for me. The boat has always been a fresh water vessel.

The rusty discharge is not only an eye sore on the gel coat. But I can't think that is all that great for the AC unit either.

Is there a easy soulation here or am i looking at a replacement? :huh:

 

[ZZ13]

Its coming from the condensate catch pan rusting slowly. My marine tech who specializes in these systems told me its only a visual issue as the unit will fail long before the pan rusts through. I just live with it. However, if you want to avoid the orange, you could pull out the unit, disconnect the pan and coat the pan. Or contact the manufacturer of the unit and get a non-metal pan from them, if they have them.

 

[Air O'Nautical]

If you mean the stain on the side of the boat below the pump discharge outlet.

Its from the water running down the hull below the discharge.
(i didnt know fresh water did that, like salt does)

You need to press in a length of hose to extend the outlet out aprox. 1/2 inch so, it never drips on the hull .

 

[susanandlance]

Poor a few bottles of Hydrogen Peroxide in the a/c pan, works great!!

 

[The Sandbar]

Thanks for all the suggestions. Glad to hear is not anything serious. I never knew that Hydrogen Peroxide would get rid of the rust.

 

[matthewmiller01]

I got the company to send me a replacement pan that was coated with non-skid material. There's a thread on here about the whole saga.

 

[ZZ13]

Poor a few bottles of Hydrogen Peroxide in the a/c pan, works great!!

For how long?

 

[susanandlance]

For how long?

I plugged the exit hole, filled with HP let sit a couple hrs. and let drain, so far so good, but my drain pan wasn't too bad either. Also use it in the shower sump with great results, but I did remove the top of box and cleaned it thoroughly.

 

[JimFromMD]

I thought about letting it thoroughly and then coating it in flex seal... from the As Seen on TV aisle. If it turns a screen door into a boat, it ought to hold out some condensate.

http://www.walmart.com/ip/As-Seen-on-TV-Flex-Seal/20850472

 

[ZZ13]

I thought about letting it thoroughly and then coating it in flex seal... from the As Seen on TV aisle. If it turns a screen door into a boat, it ought to hold out some condensate.

http://www.walmart.com/ip/As-Seen-on-TV-Flex-Seal/20850472

James, if you figure out how to do that without taking out the unit from under the bed and removing the pan, let me know. I just don't want to remove everything just for this cosmetic fix.

 

[vandal]

The water from drain pan does not exit the boat at that point it goes to shower sump box. The stain is from internal cooling water of AC unit and when it drips on side of boat leaves a stain.

 

[dpmulvey]

You may want to descale the cooling lines as well.

 

[rcknecht]

Use a short clear rubber tube in the discharge hole and it will keep the water from staining the gelcoat.

 

[susanandlance]

The water from drain pan does not exit the boat at that point it goes to shower sump box. The stain is from internal cooling water of AC unit and when it drips on side of boat leaves a stain.

Your right, my bad, plug/stop the drain hose going to the sump box, then fill a/c drip pan w/ HP, and let sit and do it's thing, while your waiting, a good time to clean the silt out of shower sump box. If the build up in the box gets too bad it will turn the sump pump on while your sleeping and make ya think your sinking.....been there, done that......

 

[mistercomputerman]

Listen to Rcknecht Rod. That's the best way to avoid the problem. The water will drip off the plastic tube instead of down the side of the boat.

 

[matthewmiller01]

Another thing. I still have my old pan if anyone wants it to coat and replace theirs. Then you could pay yours forward. If anyone wants it, just pay the shipping (I have no idea what it will cost to ship).

 

[radiojon]

So I'm looking for a solution to the rusty-AC-pan-water-in-shower-sump-and-outside-drain-stain-on-gelcoat. I had a lot of rusty residue in the shower sump that I attempted to clean out as best I could. Does the hydrogen peroxide trick really work by putting some in the drain pan and letting it sit?

- Mark

 

[Mike Blake]

The water from drain pan does not exit the boat at that point it goes to shower sump box. The stain is from internal cooling water of AC unit and when it drips on side of boat leaves a stain.

Thank you, I was just about to state the same thing. He is not talking about the drain pan.

 

[ROTYDE]

The water from drain pan does not exit the boat at that point it goes to shower sump box. The stain is from internal cooling water of AC unit and when it drips on side of boat leaves a stain.

That is correct.