Ha BillyBob
If you look at the second picture I posted you will still see the hole in the bottom of the hull that I put my scoop through attached to a cut off valve then a 90 degree brass pipe fitting then a 500 gal. per hr. live well pump. You can attach a raw water valve, hose, and pump to that second hose attachment on the pump if you want.
http://www.eangler.com/product/359700127.htm
As for the removal of water from the tank I have two separate hoses in the second picture I posted you will see 1 ½’ through transom fitting that’s for overflow of the tank since 500 gal. is going into the tank all the time. On the other side of the plywood deck support again in the second picture there is a ¾” drain for the tank with its own cut off valve to drain the tank at the end of the day. I don’t use the raw water washdown fitting since I have a fresh water 15 gal tank under the CC with its own pump and hose for that.
Also in that 2nd picture you will notice the deck I build to place the tank I build On It. My live well is 36 gal. Again I moved it to the open hatch (third picture) which is where it is located in the boat. Moving it and the gas tank Forward was one of my major objectives when I did my boat. The Live well tank deck elevates the tank JUST high enough for a in deck live well. The added advantage as a Deck support. I set up my boat that the live well made of thick fiberglass sitting ON that ¾ plywood deck and the top of the Live well supports the bottom of the boats deck.
FellowShip
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My motto: Just for the Grins