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Hard Water scale on boat after week in fresh water?
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Author:  schoolsOut [ Sun Aug 02, 2015 4:50 pm ]
Post subject:  Hard Water scale on boat after week in fresh water?
After my week at Smith Mountain Lake, the boat came out of the water looking rougher than it has after other trips. The water was very clean, clear and warm, but still left behind quite a residue. It looks like hard water staining along the waterline and on the hull. I tried washing and even waxing with a cleaner wax, but the residue is still there. I can scrape it off with a fingernail which could actually work along the waterline, but that is not a reasonable solution for the hull. I read on here somewhere that someone uses a 50/50 mix of vinegar and water. Anyone have success with that? Any other suggestions?

Here you can kind of see what I am talking about on the hull. My new High Five is also all scaled-up.

Image

Thanks for your help.
Author:  Surface Interval [ Sun Aug 02, 2015 8:40 pm ]
Post subject:  Re: Hard Water scale on boat after week in fresh water?
Seth, we have used the 50/50 vinegar and water mix for 20+ years with good luck. The longer the water spots have been accumulating, the harder they come off. But it still works.
Author:  schoolsOut [ Sun Aug 02, 2015 8:59 pm ]
Post subject:  Re: Hard Water scale on boat after week in fresh water?
Surface Interval wrote:
Seth, we have used the 50/50 vinegar and water mix for 20+ years with good luck. The longer the water spots have been accumulating, the harder they come off. But it still works.


Thanks for the reply. I gave it a try on a small spot today to see what would happen. It did not do much, but I was just using a towel. I read on the interweb that 3m scotch bright pads work well in combination with vinegar/water mix. That sounds kind of abrasive to me, but I really don't know. What do you use to scrub with? It is not so much the water spots as it is the hard water build up along the water line and lower.
Author:  DougT01 [ Sun Aug 02, 2015 11:00 pm ]
Post subject:  Re: Hard Water scale on boat after week in fresh water?
When all else fails I lightly go over it with wet 1000 grit sand paper.
It's a very fine finish and then just wax.
Author:  LouC [ Mon Aug 03, 2015 8:24 am ]
Post subject:  Re: Hard Water scale on boat after week in fresh water?
Before you use anything abrasive try a hull cleaner like Mary Kate On-Off, it is made for that purpose. I use Algex aluminum cleaner to get the crud off the outdrive after the season because it's mor gentle on the aluminum.
Author:  JeffLW [ Mon Aug 03, 2015 8:45 am ]
Post subject:  Re: Hard Water scale on boat after week in fresh water?
Works toilet bowl cleaner.
I tried this for the first time last year on my waterline with great results.
Author:  702Steve [ Mon Aug 03, 2015 10:51 pm ]
Post subject:  Re: Hard Water scale on boat after week in fresh water?
Toilet bowl cleaner.
Author:  alex8q4 [ Tue Aug 04, 2015 6:28 am ]
Post subject:  Re: Hard Water scale on boat after week in fresh water?
Scotch bright pads will make a mess of your gel coat.

Hull cleaners like Starbrite have absorbic acid in them... This might work well.
Author:  french829 [ Tue Aug 04, 2015 11:19 am ]
Post subject:  Re: Hard Water scale on boat after week in fresh water?
I have also had some success with Lime Away followed by a good waxing.
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