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homerjack
Joined: 12 Mar 2011 Posts: 186 City/Region: Homer
State or Province: AK
C-Dory Year: 1988
C-Dory Model: 22 Cruiser
Vessel Name: 49er
Photos: 49er
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Posted: Fri Jul 15, 2016 12:10 am Post subject: Transom bilge pump discharge |
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What is the location of choice for discharge thru hull fitting for "sump" area pump on CD22s? |
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ssobol
Joined: 27 Oct 2012 Posts: 3362 City/Region: SW Michigan
State or Province: MI
C-Dory Year: 2008
C-Dory Model: 22 Cruiser
Vessel Name: SoBELLE
Photos: SoBelle
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Posted: Fri Jul 15, 2016 1:55 am Post subject: |
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If you mean the sump at the aft end of the cockpit on the centerline, the bilge pump for that area pumps to an outlet on the port side of the boat below the port lazarette. This is next to the outlet for the live well (the port side of my boat has two outlets next to each other). See pictures below.
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homerjack
Joined: 12 Mar 2011 Posts: 186 City/Region: Homer
State or Province: AK
C-Dory Year: 1988
C-Dory Model: 22 Cruiser
Vessel Name: 49er
Photos: 49er
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Posted: Fri Jul 15, 2016 2:02 am Post subject: |
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Yes exactly what I mean. On my older cruiser this would be a retrofit so just looking for best location before drilling. Nice pics, thanks. |
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digger
Joined: 02 Nov 2003 Posts: 496 City/Region: Spokane
State or Province: WA
C-Dory Year: 1993
C-Dory Model: 22 Angler
Vessel Name: C-Sik
Photos: Snoopy-C
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Posted: Fri Jul 15, 2016 11:46 am Post subject: |
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I do not like it that low. With discharge low it makes water intrusion easier unless an upward loop is inline. Discharge pumps should not have checkvalves to prevent backflow |
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Sunbeam
Joined: 23 Feb 2012 Posts: 3990 City/Region: Out 'n' About
State or Province: Other
C-Dory Year: 2002
C-Dory Model: 22 Cruiser
Photos: Sunbeam
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Posted: Fri Jul 15, 2016 1:07 pm Post subject: |
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I'm with Digger. I prefer it higher up, and then would still make a bit of an upward loop if possible. Mine was already there when I bought the boat, and is on the starboard side, just below the rub rail and just ahead of the turn from topside to transom. There is room for an upward loop in the line (which comes in right astern in the starboard lazarette) and then it proceeds down to just above the fuel tanks and over to the center/transom sump mounted bilge pump.
One thing to be aware of is that if you have a boat with the "hull level" cockpit sole (i.e. before the cockpit sole/liner that came in around 2006-7 or so) then that mini sump is cored, so you may want to take that into account when you fasten your pump down. |
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thataway
Joined: 02 Nov 2003 Posts: 20779 City/Region: Pensacola
State or Province: FL
C-Dory Year: 2007
C-Dory Model: 25 Cruiser
Vessel Name: thataway
Photos: Thataway
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Posted: Fri Jul 15, 2016 7:10 pm Post subject: |
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I added a sump pump aft to our 22, and put the discharge up near the upper strip--just enough room above, to put a small loop. _________________ Bob Austin
Thataway
Thataway (Ex Seaweed) 2007 25 C Dory May 2018 to Oct. 2021
Thisaway 2006 22' CDory November 2011 to May 2018
Caracal 18 140 Suzuki 2007 to present
Thataway TomCat 255 150 Suzukis June 2006 thru August 2011
C Pelican; 1992, 22 Cruiser, 2002 thru 2006
Frequent Sea; 2003 C D 25, 2007 thru 2009
KA6PKB
Home port: Pensacola FL |
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Moxieabs
Joined: 02 Nov 2003 Posts: 208 City/Region: Cape Neddick
State or Province: ME
C-Dory Year: 2003
C-Dory Model: 22 Cruiser
Vessel Name: Widget
Photos: Widget
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Posted: Fri Jul 15, 2016 9:49 pm Post subject: |
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When I added my stern bilge pump I just ran the discharge up & out through the boot with the rest of the control cables and over the edge of the splash well so no hole through the hull. _________________ Moxieabs on WIDGET |
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ssobol
Joined: 27 Oct 2012 Posts: 3362 City/Region: SW Michigan
State or Province: MI
C-Dory Year: 2008
C-Dory Model: 22 Cruiser
Vessel Name: SoBELLE
Photos: SoBelle
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Posted: Sat Jul 16, 2016 12:19 am Post subject: |
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You could have the bilge pump dump into the splashwell. Mine has an drain at the back by the motor. |
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homerjack
Joined: 12 Mar 2011 Posts: 186 City/Region: Homer
State or Province: AK
C-Dory Year: 1988
C-Dory Model: 22 Cruiser
Vessel Name: 49er
Photos: 49er
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Posted: Sat Jul 16, 2016 3:55 am Post subject: |
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Moxieabs I like that plan. No more holes if I can help it. |
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Kushtaka
Joined: 17 Dec 2013 Posts: 648 City/Region: Cordova
State or Province: AK
C-Dory Year: 1993
C-Dory Model: 22 Cruiser
Photos: Kushtaka
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Posted: Mon Jul 18, 2016 2:58 pm Post subject: |
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mine exits right below the rub rail. I even cut the top of my through hull ffitting's flange off straight to put it right up against the rub rail.
I used an old tank vent hole that never got closed when the vents moved into the splashwell. I just had to make it a little wider. It's got a small service loop up to the top of the gunnel, but probably doesn't need it. But, the through-hull won't take on water there. The downside is that when the pump shuts off there's plenty of water to flood my sump again, so the boat doesn't ever get pumped out all the way. I keep a bailing sponge around for the last bit. I use a check valve near the bilge pump in the summer, so the extra water just stays in the hose, In the winter I have to remove the valve or the water will freeze in there.
Those low through-hull penetrations are pretty good at clearing all the water out without a bunch of backwash. A little bit of a liability if you lose a connection though. |
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Marco Flamingo
Joined: 09 Jul 2015 Posts: 1154 City/Region: Seattle
State or Province: WA
C-Dory Year: 2004
C-Dory Model: 16 Cruiser
Vessel Name: Limpet
Photos: Limpet
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Posted: Thu Jul 21, 2016 1:00 pm Post subject: |
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Since you will need new hose, be sure to spend the extra money for the smooth-wall instead of the corrugated "smurf" tube. Even on a short run of 3-4 feet, it makes a difference of probably 40%. When my new setup went off for the first time, it spooked me to see water shooting out 5 feet from the through hull.
Mark |
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