SailNet Community - Reply to Topic

   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 > Adding automatic bilge pump to manual bilge pump
 Not a Member? 


Thread: Adding automatic bilge pump to manual bilge pump Reply to Thread
Title:
  

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

Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:
 

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.



Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Additional Options
Miscellaneous Options

Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Topic Review (Newest First)
04-03-2013 09:59 AM
FirstCandC
Re: Adding automatic bilge pump to manual bilge pump

First of all, thanks to all, despite my newfound headache (haha)
I mentioned the check valve, because I didn't want the pump constantly pumping that little bit left in the discharge hose, but Tom's excellent suggestion fixes that problem.
Secondly, for the life of me, there seems to be no evidence of this boat ever having an automatic bilge, despite it being offshore numerous times. Some people like living on the edge, I guess.
Lastly, I should have prefaced the entire conversation by saying that as a complete noob at all things fiberglass, I am TERRIFIED of drilling on my Preciousss. I was a nervous wreck when I drilled four little holes for the new shore power plug! Paying the yard to do any repairs at this time is out of the question.
I guess I will check things out again this weekend, and just keep stressing until I ultimately make a decision. One thing is for sure, SeaMist is NOT going back in the water without an automatic bilge pump.
04-03-2013 07:50 AM
dacap06
Re: Adding automatic bilge pump to manual bilge pump

Yeah, no one likes cutting holes in his boat, but this time you should. Each pump needs a completely separate line and its own through-hull. Here's why:

First, let's deal with the question of check valves. All the trash and junk that falls inside the boat that you don't catch ends up in the bilge -- wood splinters, bits of paper, paperclips, whatever it might be. No matter how clean you keep your boat, stuff will end up there. This stuff tends to clog check valves so they no longer close (if you are lucky. It's worse when it clogs in a backflow so it can't open). So no check valves, please.

Now the Y valve. Y-valves ensure only one pump at a time can operate rather than both. That doesn't help you as much.

What about a Y fitting instead? Imagine your Y-connection with no check valves -- you pump from the bilge right back to the bilge.

And finally, don't forget to put a tall loop with vacuum break in your new hose as you install it, The top of the loop should be above the waterline even when well heeled -- otherwise, you will end up with reverse flow carrying water into the bilge when you heel to the through hull side.

Regards,

Tom
04-03-2013 12:38 AM
jjablonowski
Re: Adding automatic bilge pump to manual bilge pump

Plumb the second, automatic bilge pump to dump into your cockpit. Then let the scuppers handle the flow.

A sudden foot bath is better/simpler than a bilge alarm. Also, no need for another hole in your hull.

Previous discussion on this topic: http://www.sailnet.com/forums/gear-m...tml#post333418
04-03-2013 12:29 AM
chef2sail
Re: Adding automatic bilge pump to manual bilge pump

Separate thru hulls. We have one manual and two electric pumps. 3 thru hulls
04-02-2013 11:33 PM
ScottyG24
Adding automatic bilge pump to manual bilge pump

I actually have do have a secondary manual only pump below aswell as the primary manual pump (and would assume all boaters would so i didnt make mention of it) making for three pumps with the electric one and dont sail alone but if it ever got to the point that even two out of three pumps are actually necessary i think it would likely be a lost cause at that point and time to "pull the D ring, ride the rails and hit the silk"
04-02-2013 10:31 PM
RobGallagher
Re: Adding automatic bilge pump to manual bilge pump

I hate holes in the boat, but having them above the water line is less scarey. Having two or more completely redundant systems is not a bad thing.
04-02-2013 10:18 PM
mad_machine
Re: Adding automatic bilge pump to manual bilge pump

good points on being able to run both systems at once.

I myself like to keep holes in the hull to a minimum.. but sometimes you need to make an exception.. and I think this is one of those times
04-02-2013 09:32 PM
sailvayu
Re: Adding automatic bilge pump to manual bilge pump

I agree I would use a separate thru hull for the new pump. Adding Ys and check valves restrict flow and on a de-watering system the fewer restrictions the better. And has been said you may need both at once.

Capt. Wayne Canning, AMS
Project Boat Zen - Boat and Yacht Repair and Restoration
04-02-2013 09:20 PM
benesailor
Re: Adding automatic bilge pump to manual bilge pump

What happens if you need to use both pumps at once? That may sound scary but a possibility. Do you have a manual pump below? Why not? I realize that it's a 27 footer. So this may be a little bit to redundant. But, You could be 10 miles off-shore get caught in a storm and get swamped; then lose power. Is your electric bilge going to work? Probably. Do you feel comfortable being in the cockpit when you may have issues down below?

I'm a believer in a manual pump up top and one below where they are easily accessible and Piped separately if possible. Sure that one below might not be pretty; but it's no different then the fire extinguisher. I run two electric pumps as well. One fully auto and one bigger pump for emergencies. (My boats a little bigger) I plan as if i have lost all power.

Sorry to be the pessimist. Just my thoughts.
04-02-2013 08:25 PM
ScottyG24
Adding automatic bilge pump to manual bilge pump

I set up my Oday 272LE this way when i bought it. I keep the Y valve to auto bilge the whole time and use the manual bilge only for emergency ops if the need should arise or just to test it monthly. They key is remember to move the valve to correspond to manual pump or electric bilge mode obviously. a reminder by the switch is a good idea.. I didnt install any check valve as i wanted utilize the KISS principle for any bilge system.
This thread has more than 10 replies. Click here to review the whole thread.

 
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 06:10 PM.

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.