WTF is this? - Page 3 - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 


Like Tree20Likes
Reply
 
LinkBack Thread Tools
  #21  
Old 09-30-2013
steve77's Avatar
Senior Member
 
Join Date: Aug 2010
Location: Salem, MA
Posts: 481
Thanks: 3
Thanked 5 Times in 5 Posts
Rep Power: 5
steve77 is on a distinguished road
Re: WTF is this?

You have a red button? Cool!

ericb760 likes this.
Reply With Quote Quick reply to this message Share with Facebook
  #22  
Old 09-30-2013
ericb760's Avatar
Been there, done that...
 
Join Date: Apr 2012
Location: Poway, CA
Posts: 1,321
Thanks: 12
Thanked 11 Times in 11 Posts
Rep Power: 3
ericb760 is on a distinguished road
Re: WTF is this?

Quote:
Originally Posted by ottos View Post
I thought it looked home brewed....could be just about anything. What is behind the plywood panel that it is mounted to? There could be wires running through the base to whatever is there.


Pull the cover off!

The box is completely hidden unless you are on your knees in front of the head looking up. No wires come through the surface that it is mounted on. heading to the boat now, I'll photograph and update in a few hours...Stay tuned!
__________________
1969 S&S Yankee Dolphin 24 "Avri Ellis"
Reply With Quote Quick reply to this message Share with Facebook
  #23  
Old 09-30-2013
OPossumTX's Avatar
Senior Member
 
Join Date: Jul 2011
Location: Alvin, Texas
Posts: 165
Thanks: 24
Thanked 4 Times in 4 Posts
Rep Power: 4
OPossumTX is on a distinguished road
Re: WTF is this?

"PRESS TO TEST" "RELEASE TO DETONATE" box?

Perhaps a place to connect a dataloger to the echo sounder?

WE MAY NEVER KNOW!

Have FUN!
O'
Reply With Quote Quick reply to this message Share with Facebook
  #24  
Old 09-30-2013
jimgo's Avatar
Asleep at the wheel
 
Join Date: Sep 2011
Location: Pennsylvania
Posts: 3,012
Thanks: 71
Thanked 116 Times in 114 Posts
Rep Power: 4
jimgo is on a distinguished road
Re: WTF is this?

You can't leave us hangin' like this!!!
__________________
- Jim
Home: Western Philly 'burbs
1980 Allmand 31
1975 Albacore 15


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #25  
Old 10-01-2013
PaulinVictoria's Avatar
Remember you're a womble
 
Join Date: Aug 2009
Location: Sidney, BC
Posts: 1,917
Thanks: 7
Thanked 47 Times in 46 Posts
Rep Power: 6
PaulinVictoria is on a distinguished road
Re: WTF is this?

Ahhh, it's a warning signal, press it when you've done a No2 to alert passing traffic to a hazard to navigation.
It's also huuuuuuge, I had to scroll to get from end to end to see the whole picture.
__________________
Orange Crush
1974 C&C27 MkII

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #26  
Old 10-01-2013
ericb760's Avatar
Been there, done that...
 
Join Date: Apr 2012
Location: Poway, CA
Posts: 1,321
Thanks: 12
Thanked 11 Times in 11 Posts
Rep Power: 3
ericb760 is on a distinguished road
Re: WTF is this?

Okay, I think I've solved the mystery. Remember that I was going on the PO's assertion that the head was overboard dump only? Not so fast! This pic is of the fuse that was screwed in to the box:
http://imageshack.com/a/img13/7424/0m2y.jpg

This is the box disconnected from the bulkhead:
http://imageshack.com/a/img593/2353/d14s.jpg

The opened box. The silver knob is a rheostat. The plastic is a folded up sandwich bag underneath a small speaker:
http://imageshack.com/a/img194/4069/c7yh.jpg

Continued...
__________________
1969 S&S Yankee Dolphin 24 "Avri Ellis"
Reply With Quote Quick reply to this message Share with Facebook
  #27  
Old 10-01-2013
ericb760's Avatar
Been there, done that...
 
Join Date: Apr 2012
Location: Poway, CA
Posts: 1,321
Thanks: 12
Thanked 11 Times in 11 Posts
Rep Power: 3
ericb760 is on a distinguished road
Re: WTF is this?

The single wire runs through the bulkhead and UNDER the water tank, which is mounted semi-permanently with a 1X3 wooden frame:
http://imageshack.com/a/img818/2434/86l0.jpg

There's not much room but I managed to wedge my hand down between the hull and the tank to...wait for it...knock on another hidden tank underneath the water tank! In the above picture you can see two hoses at the bottom of the frame coming up from underneath the water tank. These two connect as one and run aft all the way to the transom where it exhausts out a small clam shell vent.

Now, taking another look at the hoses attached to the head we see a third hose (the one in the middle) that runs along the sole through a hole in the bulkhead where it disappears under the water tank:
http://imageshack.com/a/img41/4538/0tjd.jpg

Continued...
__________________
1969 S&S Yankee Dolphin 24 "Avri Ellis"
Reply With Quote Quick reply to this message Share with Facebook
  #28  
Old 10-01-2013
ericb760's Avatar
Been there, done that...
 
Join Date: Apr 2012
Location: Poway, CA
Posts: 1,321
Thanks: 12
Thanked 11 Times in 11 Posts
Rep Power: 3
ericb760 is on a distinguished road
Re: WTF is this?

We can see that the three way valve would allow waste to be immediately dumped overboard or diverted in to the hidden holding tank. There is no deck pump-out, so I assume that the tank was emptied overboard when offshore. Hence the black box, which is, as some suspected, a holding tank alarm. When it went off the owner probably hove-to and manually pumped the waste overboard. Either way, removing this ancient artifact is going to be a lot more work than I first assumed....it's a boat, go figure...
__________________
1969 S&S Yankee Dolphin 24 "Avri Ellis"
Reply With Quote Quick reply to this message Share with Facebook
  #29  
Old 10-01-2013
ericb760's Avatar
Been there, done that...
 
Join Date: Apr 2012
Location: Poway, CA
Posts: 1,321
Thanks: 12
Thanked 11 Times in 11 Posts
Rep Power: 3
ericb760 is on a distinguished road
Re: WTF is this?

Quote:
Originally Posted by PaulinVictoria View Post
It's also huuuuuuge, I had to scroll to get from end to end to see the whole picture.
Yeah, I edited the post so you are not subjected to that big a picture, sorry about that!
__________________
1969 S&S Yankee Dolphin 24 "Avri Ellis"
Reply With Quote Quick reply to this message Share with Facebook
  #30  
Old 10-01-2013
ottos's Avatar
Señor Member
 
Join Date: Aug 2008
Location: OC NJ
Posts: 480
Thanks: 2
Thanked 3 Times in 3 Posts
Rep Power: 7
ottos is on a distinguished road
Re: WTF is this?

OK the large component is a piezo buzzer - I think it is - (PKB6-5A0)

Is there a connection from the other side of the rheostat? I can't see one. There is also a small Motorolla component which I can't identify.

Anyway FWIW - holding tank alarm seems very likely based on your observations of where the wire goes. The button is probably a temporary reset of the alarm.

Take a close look at the red wire from the rheostat. It appears very close to shorting out against the fuse terminal...
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



All times are GMT -4. The time now is 02:51 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.