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PostPosted: Wed Feb 27, 2013 3:52 pm 
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Site Rank - Deck Hand

Joined: Sat Jan 29, 2011 11:19 pm
Posts: 22
Location: Gold Coast, Australia
My mate tried this one
http://aquachargepump.com/
He ended returning it as he forgot that he would have to go to the back hatch to turn it on :lol:

looks like the manual bilege pump we ae using is the same, just differen't branding on it.


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PostPosted: Wed Feb 27, 2013 4:19 pm 
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Joined: Tue May 18, 2010 2:31 pm
Posts: 2999
Location: Kailua 96734
Probably a good thing. It's rated at ~300gph but only lasts 40 minutes!!

And it takes 12 hrs to charge?? Surprising.

Probably only enough juice to drain a full hull one time.


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PostPosted: Wed Feb 27, 2013 4:46 pm 
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Joined: Sat Jan 29, 2011 11:19 pm
Posts: 22
Location: Gold Coast, Australia
yeah and 4x the price of the one i installed.


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PostPosted: Tue Dec 06, 2016 1:22 pm 
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Joined: Wed Jun 01, 2016 7:11 pm
Posts: 18
I got my electric bilge pump components ready to be installed. I decided on locating the Attwood 500Gph pump in the rear of my TI from personal experience and other members claiming water accumulate in the rear of the boat. My issue is where to install the discharge port. I am not using a check valve. I am considering using a rubber scupper valve to stop some of the water from coming back into the TI. At this point, I am thinking on drilling and placing the discharge port all the way in the back right behind the main sheet pulley.

Any thoughts / suggestions? Any member that rigged their yaks with electric bilge pump here? Can you share your install? How did you resolved/minimized water getting back into the hull from the discharge port when in rough sea?

Thank you for you help!


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PostPosted: Thu Dec 08, 2016 10:36 am 
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Joined: Mon Aug 04, 2014 8:17 pm
Posts: 374
Location: Austin Texas
That's what check valves are used for in pump systems. You might test you pump to see if it has one built in. If not you can find a suitable check valve with a hose barb fitting on both sides to insert in the discharge tubing. Marine supply places carry them but you will need to select one suitable for the discharge pressure capability of the pump. The pump manufacturer may have one or be able to recommend an appropriate one.

Chris


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PostPosted: Thu Dec 08, 2016 9:12 pm 
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Joined: Fri Dec 01, 2006 1:38 pm
Posts: 72
I installed a whale Supersub 650 on my Oasis. For simplicity, and so I am in control of when the pump turns on, I went with a switched model rather than automatic. The pump is mounted to the hull bottom just forward of the aft seat hatch. I used heavy duty clear plastic tubing rather than the cheap leaky black corrugated stuff as it lasts forever and you can see what is going on or if water is trapped in the system. I mounted the drain as high as I could facing out to the right of the aft seat. I did not install a check valve since they do not work that well (slow seepage if inflow), at least the small cheap versions used in kayaks, they can prevent proper pump priming especially with centfrigal pumps, and if mounted at all below the outlet water can collect and remain in the system. Instead I installed an adjustable snaplock brass and rubber drain plug on the outside of the outlet, with a cord to a pad eye so it doesn't get lost. To pump I just remove the plug and flip the power switch which is also mounted beside the seat, and I can easily see the water leaving the outlet and when it stops. As it turns out this Oasis is much dryer in the hull than either of my Outfitters so I have only used the pump thus far for testing and the occassional flushing of the hull interior with fresh water.

Peter


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PostPosted: Fri Dec 09, 2016 11:03 am 
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Joined: Mon Nov 02, 2015 9:59 am
Posts: 28
plfinch wrote:
I installed a whale Supersub 650 on my Oasis. For simplicity, and so I am in control of when the pump turns on, I went with a switched model rather than automatic. The pump is mounted to the hull bottom just forward of the aft seat hatch. I used heavy duty clear plastic tubing rather than the cheap leaky black corrugated stuff as it lasts forever and you can see what is going on or if water is trapped in the system. I mounted the drain as high as I could facing out to the right of the aft seat. I did not install a check valve since they do not work that well (slow seepage if inflow), at least the small cheap versions used in kayaks, they can prevent proper pump priming especially with centfrigal pumps, and if mounted at all below the outlet water can collect and remain in the system. Instead I installed an adjustable snaplock brass and rubber drain plug on the outside of the outlet, with a cord to a pad eye so it doesn't get lost. To pump I just remove the plug and flip the power switch which is also mounted beside the seat, and I can easily see the water leaving the outlet and when it stops. As it turns out this Oasis is much dryer in the hull than either of my Outfitters so I have only used the pump thus far for testing and the occassional flushing of the hull interior with fresh water.

Peter


What switch are you using ?


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PostPosted: Fri Dec 09, 2016 3:23 pm 
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Joined: Fri Dec 01, 2006 1:38 pm
Posts: 72
Tech wrote:
What switch are you using ?


This one: https://www.amazon.com/gp/product/B01AWR6NCY/

First I used layered heatshrink tubing to cover the switch assembly and reduce down to the diameter of the wires for added waterproofing. I also used a bit of marine sealing caulk on both sides of the hull opening during installation. The assembly is installed from inside the hull and the rubber boot screws on from the outside.

Peter


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