Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 01-03-2009, 12:35   #1
Registered User
 
Extemporaneous's Avatar

Join Date: Dec 2007
Location: Canada
Boat: Corbin 39 Special Edition
Posts: 909
DC Tools underwater?

Don't know if this is the right place for this but.....
Sometime way back (different life perhaps) I had heard of someone using a 12v drill underwater.
I know this is vague but I don't remember.
That said, the other night at a Sailing function another sailor mentioned it. So I thought I'd put it out there in the hopes of finding someone with first hand experience. Also for some of the technical guys, how does this work (assuming it does).
I
s it a DC phenomenon? What are the dangers of electrocution?

Anyone?

Extemp.
__________________

__________________
Extemporaneous is offline   Reply With Quote
Old 01-03-2009, 12:46   #2
Ram
Registered User
 
Ram's Avatar

Cruisers Forum Supporter

Join Date: May 2005
Location: Cruising Greece
Boat: Cat in the med & Trawler in Florida
Posts: 2,298
Images: 27
What are the dangers of electrocution

NONE -on 12volts dc

I once dropped a ele drill in a 5 gallon bucket of water , and to my suprize it keep running- so I let it run for a min or two, then let it dry out for a few days- later started using it like nothing had happened- maybe a 12 volt will work under water? I think the battery is the weakess link- and I think its not gonnna last long after hitting the salt water
__________________

__________________
Ram is offline   Reply With Quote
Old 01-03-2009, 13:15   #3
Eternal Member
 
Chief Engineer's Avatar

Join Date: Aug 2006
Location: North of Baltimore
Boat: Ericson 27 & 18' Herrmann Catboat
Posts: 3,798
Somebody is pulling your leg
__________________
Chief Engineer is offline   Reply With Quote
Old 01-03-2009, 14:35   #4
Registered User
 
Extemporaneous's Avatar

Join Date: Dec 2007
Location: Canada
Boat: Corbin 39 Special Edition
Posts: 909
Quote:
Originally Posted by Chief Engineer View Post
Somebody is pulling your leg
Quote:
Originally Posted by Ram View Post
What are the dangers of electrocution

NONE -on 12volts dc

I once dropped a ele drill in a 5 gallon bucket of water , and to my suprize it keep running- so I let it run for a min or two, then let it dry out for a few days- later started using it like nothing had happened- maybe a 12 volt will work under water? I think the battery is the weakess link- and I think its not gonnna last long after hitting the salt water
Ram..............
Are you pulling my Leg??????

To be clear, no one said that it was good for the equipment or that it would last very long. But it may come in handy if one needed to dive under the boat and screw a piece of plywood over a hole! Oh ya, and then buy a new cordless drill. Who cares at that point.

Extemp.
__________________
Extemporaneous is offline   Reply With Quote
Old 01-03-2009, 14:37   #5
Registered User
 
Extemporaneous's Avatar

Join Date: Dec 2007
Location: Canada
Boat: Corbin 39 Special Edition
Posts: 909
Maybe I'll get my mother in law to try it.
__________________
Extemporaneous is offline   Reply With Quote
Old 01-03-2009, 15:35   #6
Registered User
 
Dave the Canuck's Avatar

Join Date: Jul 2008
Location: Georgian Bay, Canada
Boat: Catalina 34 - "Points North"
Posts: 493
Quote:
Originally Posted by Extemporaneous View Post
Maybe I'll get my mother in law to try it.
If she balks, I have one you could use.
__________________
Dave
Dave the Canuck is offline   Reply With Quote
Old 01-03-2009, 15:55   #7
Registered User
 
Extemporaneous's Avatar

Join Date: Dec 2007
Location: Canada
Boat: Corbin 39 Special Edition
Posts: 909
Oops

Had my wife read this and she thought it was hilarious.............
Until she figured out who Extemporaneous was.

Extemp.
__________________
Extemporaneous is offline   Reply With Quote
Old 01-03-2009, 16:49   #8
Senior Cruiser
 
DeepFrz's Avatar

Cruisers Forum Supporter

Join Date: Mar 2006
Location: Winnipeg
Boat: None at this time
Posts: 7,930
I read an article in one of the mags. a few years back about a couple who's yacht sprang a leak along a crack in the hull. They used DC power tools with lots of water spraying all over the place to screw down a piece of plywood with lots of caulk spread on it. They had to drill through the plywood and then screw in wood screws to hold the plywood down. That would have been about as good as being underwater, I think. They didn't say if the tools were ruined in the experience or not, but they saved their boat.
__________________
The Blue Dot Campaign. This Changes Everything.
DeepFrz is offline   Reply With Quote
Old 01-03-2009, 18:17   #9
Eternal Member
 
Chief Engineer's Avatar

Join Date: Aug 2006
Location: North of Baltimore
Boat: Ericson 27 & 18' Herrmann Catboat
Posts: 3,798
www.rentaltoolsonline/category-s/83.htm

or you try using one in a sink

the unit needs to be completely sealed

btw air tools DO work underwater.......

you have to flush them out real good and oil them immediately after use.
__________________
Chief Engineer is offline   Reply With Quote
Old 02-03-2009, 01:13   #10
Registered User
 
Celestialsailor's Avatar

Join Date: Nov 2006
Location: In Mexico, working on the boat
Boat: Hallberg Rassy 35. and 14ft.Whitehall pulling skiff.
Posts: 8,013
Images: 5
I can't see how any electrical tool could be used in salt water. Whether A.C. or D.C., salt water contucts electricity. It would short out the tool.
__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well-preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming: Wow - what a ride!"

http://wwwjolielle.blogspot.com/
Celestialsailor is offline   Reply With Quote
Old 02-03-2009, 04:29   #11
Senior Cruiser
 
Talbot's Avatar

Cruisers Forum Supporter

Join Date: Jun 2004
Location: Brighton, UK
Boat: Privilege 37
Posts: 3,579
Images: 32
One of the junkyard build TV programmes was on an underwater vehicle needing to negotiate a course. IIRC they used Gel batteries to get over the water into battery problem, and they used car starter motors to drive a propellor. No problems, but may well have been fresh water - dont know what would be the additional problems in salt due to it's increased conductivity.

The tool would work, but I suspect it would be a throw away block of rust soon after.
__________________
"Be wary of strong drink. It can make you shoot at tax collectors - and miss."
Robert A Heinlein
Talbot is offline   Reply With Quote
Old 10-03-2009, 20:01   #12
Registered User
 
Extemporaneous's Avatar

Join Date: Dec 2007
Location: Canada
Boat: Corbin 39 Special Edition
Posts: 909
A little more support for the possibility.

"When faced with a flooded bilge situation, VRLA batteries will continue to operate submerged up to a 30-foot depth."

See page 2/23 of the link.
http://www.llelectronics.com/docs/aw...eBatteries.pdf

It's pretty low on the priority list, but if I get a chance I will buy a cheap chargeable drill and try it. I need to know.

Extemp.
__________________
Extemporaneous is offline   Reply With Quote
Old 10-03-2009, 20:29   #13
Registered User
 
Celestialsailor's Avatar

Join Date: Nov 2006
Location: In Mexico, working on the boat
Boat: Hallberg Rassy 35. and 14ft.Whitehall pulling skiff.
Posts: 8,013
Images: 5
Quote:
Originally Posted by Extemporaneous View Post
A little more support for the possibility.

"When faced with a flooded bilge situation, VRLA batteries will continue to operate submerged up to a 30-foot depth."

See page 2/23 of the link.
http://www.llelectronics.com/docs/aw...eBatteries.pdf

It's pretty low on the priority list, but if I get a chance I will buy a cheap chargeable drill and try it. I need to know.

Extemp.
In salt water? I cannot see how a DC battery of any kind would defy physics.
__________________
"Life is not a journey to the grave with the intention of arriving safely in a pretty and well-preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming: Wow - what a ride!"

http://wwwjolielle.blogspot.com/
Celestialsailor is offline   Reply With Quote
Old 10-03-2009, 20:32   #14
Registered User
 
Extemporaneous's Avatar

Join Date: Dec 2007
Location: Canada
Boat: Corbin 39 Special Edition
Posts: 909
Quote:
Originally Posted by Celestialsailor View Post
In salt water? I cannot see how a DC battery of any kind would defy physics.
The Internet SAID it. It's MUST BE TRUE!!!
__________________
Extemporaneous is offline   Reply With Quote
Old 11-03-2009, 00:06   #15
Senior Cruiser
 
Lancerbye's Avatar

Cruisers Forum Supporter

Join Date: Mar 2007
Location: Ladysmith,BC, Vancouver Island , Canada
Boat: Lancer 44 Motorsailer
Posts: 1,757
Images: 32
If the connections were sealed, the motor was sealed and the battery was sealed to prevent water getting to the contacts it should work. It does not need air. Tape over the air holes which in a universal motor are opened to the brushes. coat with some sealant, same with the baterry and you have a submersable drill.
__________________

__________________
The basis of accomplishment is in never quitting
Mengzi Meng-tse
Lancerbye is online now   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Gun Socks for tools Charlie Product or Service Reviews & Evaluations 14 02-12-2008 19:48
Question about tools….?? Interstategypsy Construction, Maintenance & Refit 33 10-08-2008 13:49
What Tools Will I Want? Jay Jennings Construction, Maintenance & Refit 26 06-07-2008 04:47
Tools For Fibreglass and Gelcoat Repair Sonosailor Construction, Maintenance & Refit 5 01-04-2007 00:37
Dolphins use tools GordMay The Library 2 09-06-2005 20:39



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 23:37.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.