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Go Back   SailNet Community > On Board > Gear & Maintenance > cleaning the prop
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Topic Review (Newest First)
09-07-2007 12:13 PM
Fstbttms
Quote:
Originally Posted by JohnWallace View Post
Preventive medicine is the best way. After it is cleaned tie a black garbage sack over the prop. No more barnacles or marine growth. They need light.
After each use put another sack. Works for me.
What you suggest means diving the boat twice each time you use it; once to take the bag off and again when you are putting the boat away to put a bag on. Why not just dive the boat once and clean the prop? Unless I'm missing something here.
09-07-2007 11:09 AM
JohnWallace
Cleaning Prop

Preventive medicine is the best way. After it is cleaned tie a black garbage sack over the prop. No more barnacles or marine growth. They need light.
After each use put another sack. Works for me.

John
Ranger 29
Rockport, TX
09-06-2007 12:13 PM
Bestarius Thanks all for the input on extending the snorkel length. I never thought of any of those dangers and work-arounds.

I've used Anhydrous Lanolin on my prop with great success. It's available at drug stores and is inexpensive. I believe it's safe for the environment since It's made of sheep wool fat. When you're finished coating your prop, rub the remainder on your lips and have the smoothest lips in town! I've also used it as an anti-seizing compound. I think it's the primary ingredient in Lanocote.

Maybe there are no barnacles in Loch Ness, but what about that monster!!!!

Paul
09-05-2007 06:15 PM
hellosailor Chris-
With cold water and "little use" almost any grease would stop barnacles from attaching to a prop. But Penateh cream contains, among other things, Cetylpyridinium Chloride which is classed as both an antiseptic and a pesticide. In the US, it probably would be illegal to apply it under a boat without a pesticide license. You could certainly sneak it in--but the threat of state or federal EPA sanctions would pretty much guarantee it can't be sold for this purpose.

Since zinc oxide also has antimicrobial and antifungal properties, it might also be problematic in commercial sales.

Now, if you just smeared Vaseline on one blade, and axle grease on another...we'd have something objective to compare it all to. < G >

"Medicinal Ingredients:Hamamelis Extract .527%, Zinc Oxide 18.724%
Non-medicinal Ingredients: Panthenol 1.055%, Allatonin 0.211%, Cetylpyridinium Chloride 0.106% in Penaten Cream base."
09-05-2007 05:58 PM
ChrisRuck
Prop Cleaning

Hi

Not that this will help this year! I smear Penaten cream (a Baby's bottom cream (zinc oxide with some medical stuff in it) on the prop and shaft every time I haul out or I go on a tide grid.I put the Penaten cream on in May last year and was on the tide grid last week. The prop was clean but there was some slime and loose barnacles on the shaft. The shaft cleaned up fine with a nylon scouring pad in less than a minute.

The boat is a Fiberglass sail boat in Vancouver BC and is in moored in salt water and has not had much use this year.

My 2c s worth

Chris
09-05-2007 01:20 PM
hellosailor Dangerous for two reasons:
The CO2 buildup is something you can work around, if you INhale through the snorkel and EXhale out your mouth or nose--so you don't exhale used air back into the snorkel.
But, lungs are also more fragile than you think. There is some slight risk that if you have a thin spot in your lungs (some people do, there's no way you'd know) the extra effort of sucking the air in could blow it out. Note that I say "slight" risk, you're not pushing it much.
When I was a kid they used to sell 3' long snorkels for kids...that's like trying to breath through a straw, because of the extra water pressure on your lungs. Every foot makes a difference.

CO2 problems have been getting a lot of press this year as kids are dying from "shallow water blackouts", i.e. they are flushing their lungs and then doing breath-holding contests under water. If you flush the CO2 out that way, your body can also fail to sense the normal CO2 buildup and you wind up passing out for no obvious reason--and drowning. Not your problem, but one of the complications when land mammals try to be marine mammals.

BTW, a plain wool watch cap makes good protection for your head. No added buoyancy, some added insulation, some added "banged my noggin on the hull!" protection too. It isn't armor by any means--but it HELPS.
09-05-2007 12:54 PM
Rockter If you are re-breathing air and the hose is too long, your CO2 in solution will rise and you will want to breathe so bad you'll want come up anyway.

Use a narrow hose, and blow hard.

At 1 foot, I think you'll be ok.

Hey, you don't get barnacles in the fresh water of Loch Ness.... come visit you barnacle-dodgers.
09-05-2007 12:37 PM
tx7777 Two quick comments:
1. If you're working on a larger boat, tie an empty milk jug to the end of a short line and tie the other end to the prop shaft when you first find it. Makes it easy to find it again.
2. Use a hatchet for a barnacle scraper. Keeps your fingers away from the sharp shells and won't bend. Personally, I use an old ax head.

Jerry
09-05-2007 12:00 AM
gilsurf Advantages, sailing and midwest in one sentence and related? Humm?? On that note, a big advantage to moving life to warm water is ease of things in the water like props, hulls, etc. On my daily swims, I take a quick pass of the hull and prop, cleaning seagrass from the strainers and noting prop foul (needs a 5 min green scrubby dance).

Clogged plumbing? Yes! In my search for the issue causing a low volume of sea water going to my fridge, I discovered quite an intense colony of tiny barnacles in the hose just past the seacock and before the strainer. Next haul all through hulls are getting a full ream out.
09-04-2007 11:38 PM
RAGTIMEDON
Praise God!

One of the very few advantages of sailing in the Midwest, we don't have barnacles in the Mississippi. They laughingly call it fresh water! However, you guys who say you have to get within 6-8 inches of the prop before you can see it should try my river! 1-2 inches is good on a VERY sunny day! I once told a sailor in the North Channel in all seriousness that if you pour strong coffee in my sailing ground, you will leave a clean spot. But there are no barnacles, only Zebra Mussels! I'm not certain which is worse -- Zebras will close up your thru-hulls and foul your prop too, but probably more slowly. Ever known someone who burned up an engine because the cooling water supply was shut off by zebra mussels? I have, but then, who would expect a power boater to watch his engine temp gauge! It's hard to see little things like that at 50 mph. Do the barnacles close your thru-hulls?
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