Aerator/Live well Question.

Rockchalk

Petty Officer 3rd Class
Joined
Jan 10, 2005
Messages
82
I am rebuilding a 1984 lund. The previous owner put in a new aerator pump which is now bad and needs to be re-placed again. I am wondering what is the typical location of an aerator pump. This one was bolted directly to/through hull hole but I am not sure if that is the correct way to run plumbing. An ideas? Thanks!!!
 

jtexas

Fleet Admiral
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Oct 13, 2003
Messages
8,646
Re: Aerator/Live well Question.

That's how mine works; 1980 Kingfisher fiberglass. Pump attached to thru-hull fitting in the transom, outputs through a hose to an aerator bar in the livewell.
 

garzaglass

Seaman
Joined
Feb 13, 2005
Messages
54
Re: Aerator/Live well Question.

hey jtexas, I just bought a 79 kingfisher. its my first boat. was wondering if you know anywhere that would have maybe a drawing or explination of how to set up my live well. its got a hole in the bottom with a plug and a hole in the side going to the outside of the boat. there is a garden hose that runs out of the live well and to the back of the boat but goes nowhere. there is a hole in the bottom of the transom that somebody plugged up with a cork and some cilicone sealent. now im guessing that hose went to that hole in the transom. im thinking all I need at this point is a bilge pump and Ill be in business but I just dont understand how to set it up. any suggestions would be appreciated.
 

jtexas

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Oct 13, 2003
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8,646
Re: Aerator/Live well Question.

That is exactly how my boat is set up. I'll try to remember to take some pics tomorrow.<br /><br />It's got a pump like this one with a thru-hull fitting where yours has a cork. The other end has an aerator attached. The pump has a switch on the console. The hole in the side of course is the overflow drain.<br /><br />It also has a pump-out pump down in the livewell, with a hose pointing at the overflow drain. The hose is held in place with cable ties through tiny holes drilled in the top of the livewell. Originally had a small bilge pump, when it went out I replaced it with an aerator pump, works just as well.<br /><br />I usually leave the hole in the bottom of the boat open, so the livewell fills from that hole. When I get some fish in there I turn on both pumps every now & then, depending on the temperature. It's good to pump out the old water as fish deplete the oxygen in there. I've kept 30-40 white bass alive in there for most of the day.<br /><br />The bilge pump output hose just runs up through the opening for the wiring harness/steering cable, and empties into the splashwell. The bilge switch used to be on the starboard side gunnel, but I moved it to the console with the others.<br /><br />I'm glad you posted, I was wondering if that garden hose setup was somebody's do-it-yourself idea, but I guess the dealer did it.<br /><br />Welcome to iboats.
 

garzaglass

Seaman
Joined
Feb 13, 2005
Messages
54
Re: Aerator/Live well Question.

oh yeah there is a swch on mine where yours used to be. I bet that ran the pump. Pics will definatley help me as I dont have an understanding how this setup works. If i could just see it once I could probably recreate it myself. So the corked hole in the transom is where that pump like in your link would go? the pump would be inside the boat and that long end would be through the hole comming out the transom. thats my understanding. so that pump is pumping water out of the lake then into your live well. if im correct on this its the rest of the set up that eludes me. thanks for your help.
 

jtexas

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Oct 13, 2003
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Re: Aerator/Live well Question.

well wouldn't you know I forgot about the pics while I had the boat out over the weekend. I keep it at a storage yard & don't have a chance to get over there much during the week. It'll probably be first of May before I get back to it. I'm sorry about that. I'll try to give you enough to get started:<br /><br />Here's a very simplistic diagram, sorry for the poor quality:<br />
livewell%20diagram.bmp
<br /><br />You've got the right idea about the fill pump - it brings in lake water to the livewell. Your new pump should come with a thru-hull fitting. The sealant you want to use for that is 3M 5200 , great stuff, Wal-mart usually carries it, or any marine supply store.<br /><br />The other end of the hose in the livewell has an aeration head on it. Mine isn't like this one but they function the same.<br /><br />The pump-out pump used to be a regular bilge pump with the discharge hose pointed at the overflow hole. When it burned out I replaced it with one like this (except without the battery clamps), thinking it was what I needed. It might be better anyway, since it's designed to go inside a livewell, has a filter to keep crud out of the pump & might run a little cooler, too. What I did was, cut the top off the discharge pipe, and shoved a piece of low-pressure pvc hose down over it (not enough pressure to require a clamp or anything) & routed the hose up & around the top corner of the livewell so that it sticks out the overflow hole by a half-inch, maybe less. There's no fittings there or anything, the hole is just open, with a tiny bit of hose sticking out. The idea isn't to keep water in or out of the hole, just to provide an outlet for pump-out. I drilled some tiny holes in the top of the livewell, just enough for small cable ties to go through, to hold the pump-out hose in place. the hose keeps the pump from swinging around & getting in the way.<br /><br />I recently replaced my bilge pump with<br /> one of these , I got the 900 gph but it's more than I need. It just sits on the floor in the bilge area, not attached to the boat. The discharge hose runs up to the starboard side under the splashwell, through the hole along with the engine wiring & steering cable, and empties into the splashwell.<br /><br />I used automotive toggle switches but now wish I had used marine - they're better suited to the environment. You can find all kinds of wiring advice in the "Electric/electronics" forum here on iboats. I'll still try to get photos next chance I get.<br /><br />good luck!<br />john<br /><br />p.s. now that I'm thinking about it, one of the livewell pump switches may have been on the starboard gunwale also but it's on the console now. I installed an emergency shutoff switch there and I'm thinking it had a switch there before.<br /><br />Here's a couple pics of my Kingfisher - there the only digital photos of it I've got right now. Got any pics of your boat?<br /><br />
S4200093.jpg
<br /><br />
S4200092.jpg
 

garzaglass

Seaman
Joined
Feb 13, 2005
Messages
54
Re: Aerator/Live well Question.

thanks for the reply. Ive been hitting the crappie hard the past few weeks and havent had time to check the forum. that pic is going to be a big help for me and setting mine up. what I didnt realize is that in the set up there is another pump in the livewell pumping water out. I thought the overflow hole would just allow the water to run out as its being pumped in but probably not as fast as you need it to. so I guess you want a steady stream of fresh water going in and out. that kingfisher looks exactly like mine except mine is brown and light brown. Ill try and get pics soon.
 

jtexas

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Re: Aerator/Live well Question.

I'm not convinced that the pump-out pump was in the original design, but it's a good thing to remove the oxygen-depleted water, especially since fresh water fills from the top. The overflow hole does keep it from flooding the boat. I turn both pumps on for a few minutes every once in a while; it empties faster than it fills, even with the hole in the bottom open, so I have to leave the intake pump on longer. When the water temp is up around 70 it helps to add some ice now & then; warm water doesn't hold oxygen as well.<br /><br />If you ever run in rough water (like on Lake Texoma)you should know that when swells get up around 2 feet water will flow in through the overflow hole, fill up the livewell and flow into the boat. Not so much when drifting, just when moving forward through the waves. First time it happened, I took on enough water that the boat wouldn't come up on plane - it's good to have a reliable bilge pump when that happens. And sometimes if you make a high-speed hard turn to starboard.<br /><br />Does your boat have the rear seat on a fiberglass pedestal on a floor raised a couple inches off the hull?
 

Darren Smith

Petty Officer 2nd Class
Joined
Mar 25, 2005
Messages
135
Re: Aerator/Live well Question.

My old fish and ski boat had a drain in the bottom of the live wells. When I wanted to fill them up, I just installed one of those little rubber plugs with a brass lever on top. The drain emptied to a thru hull near the bottom of the transom. It still had the overflow towards the top like the above picture. It just save the cost/trouble of installing an extra pump.
 

jtexas

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Oct 13, 2003
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Re: Aerator/Live well Question.

I couldn't find a single piece of solid wood in that entire floor area - it was all just mush. Water wasn't draining under the floor through to the bilge, for who knows how long. I pulled it all out, along with all the carpet in the boat (most of the carpet glue had disentegrated).<br /><br />I had to tear out quite a bit of rotten wood trim, mostly covering floatation foam panels, but don't worry - the transom and stringers are all isolated from the trim, so they're undamaged. Also, surprisingly, all the floatation was bone dry, hadn't taken on a drop of water. <br /><br />All that rotten wood did seem to be holding some odors, though, and it was lots better after I tore it out.<br /><br />The fiberglass pedestal came out in one piece, so I cut a piece of 3/4" plywood to fit back there & screwed the pedestal to it as a temporary fix. Wasn't pretty, but I used it like that for almost a year until I just recently built in a deck back there.<br /><br />Hope that doesn't cause you to lose any sleep - even you've got this problem it's not going to sink on you or fall apart or anything.<br /><br />One other thing - the flange covering the thru-hull drain on the splashwell had gotten loose and water had infiltrated to the transom. That would be a more pressing issue - I found a fairly simple fix for that at West Marine. Let me know if you need me to tell you about it.<br /><br />good luck!
 

garzaglass

Seaman
Joined
Feb 13, 2005
Messages
54
Re: Aerator/Live well Question.

yes please do. also do you have a pic of the deck you built. i would like to see that.
 

jtexas

Fleet Admiral
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Oct 13, 2003
Messages
8,646
Re: Aerator/Live well Question.

The splashwell drain, I took it out and just went at it with a collection of sharp tools, digging out all the wet wood I could get at. Then I poked at the transom with a screwdriver from the inside, it pierced the rotten parts easily. I ended up with a cavity about three inches side to side extending five or six inches down from the top, a quarter- to half-inch deep.<br /><br />Filled it with 3m Marine Premium Filler, sanded it smooth, and covered it with 3 or four layers of fiberglass mat. You have to be sure to remove all the rotten wood.<br /><br />I won't go into all the how-to's on fiberglass repair here - plenty of advice on that in the boat restoration forum. My efforts are all pretty rough-looking anyway.<br /><br />Bought a new flange & installed it with 5200. I got a plastic one with an end that screws on, since I don't have a tool to flare the end.<br /><br />The deck, I'll photograph next time I have the boat out. Here's a crude drawing of the frame, built from 2x4's:<br />
frame.bmp
<br /><br />with a 3/4" plywood top.<br /><br />The black circle is the chair pedestal, the red lines show where the two 6-gallon tanks are stowed, and blue lines indicate a partition, so the fuel is isolated from the battery. the fuel compartment has a 1/4" plywood "ceiling," which reduces the area where fumes might accumulate to effectively nothing - it's in compliance with USCG regs, not that I'm an inspector or anything but I'm convinced it's safe. I use plastic tanks without gauges, so I have to be able to see the fuel level.<br /><br />I cut a hinged lid in that port section over the tanks, made a handy 4" deep box for tools, drain plugs, lures, maps etc. I added some framing so that the lid over-hangs the walls of the box, which keeps water out.<br /><br />The entire back section of deck is hinged from the center for easy access from outside the boat. the hinged section folds back completely with the seat removed. The starboard storage bin and the battery area aren't "dry" storage - I might have to work on that.<br /><br />I attached the frame to 4 legs made from 1/2" galvanized pipe, with floor flanges on both ends. The floor is held up off the hull by 8 legs fabricated from cross sections of PVC pipe, 2" tall in the center and 1" tall on the sides, and some small-gauge galvanized wire and fiberglass resin. And I put a PVC drain under the floor back to the bilge. Haven't decided whether to glass it in. Right now it can be removed without tearing anything up.<br /><br />It's an believable improvement for fishing over having battery & fuel underfoot, and the outboard staring you in the face. I just haven't worked out passenger seating yet, since the back seat fisherman can't sit in the tall chair while under way. You have to sit on port side storage locker.<br /><br />I also put a six-rod storage holder like this on the front of the console, and my rods stand up there all the time, haven't stepped on a reel since (I broke two spinning reels last summer).<br /><br />I've decided not to replace the carpet - it looks pretty rough but it's easy to hose it down. And it's a mean fishing machine; 44mph with the 70hp with one passenger (a buddy in his boat clocked me with GPS). And I'm not afraid to take it into shallow water, standing timber, stump fields, bumpy dirt roads, pretty much anywhere.
 

garzaglass

Seaman
Joined
Feb 13, 2005
Messages
54
Re: Aerator/Live well Question.

sounds like a sweet set up. whenever you can take some pics of all that I would appreciate it. that will help me get an idea of how to get that going. Im not good at workwork and fabricating stuff but my grandfather in law is and this would be a great project for us.
 
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