Deck wash / live bait tank pump
Does anyone run one of these dual port pumps for their deck wash / live bait tank?
http://www.chsmith.com.au/Products/Johnson-Twin-Port-Live-Well-Pump.html
They are in fact a live bait tank pump with an additional outlet before the pump for your deck wash to connect to, therefore only requiring one pick up point.
They are also intended to attach directly to a through hull skin fitting / stop cock, but I don't particularly want to introduce that into my otherwise sealed hull (just introducing a potential leaking point). I am thinking of mounting it externally on the transom and connecting by hose to my existing deck wash pick up which is a forward facing s/s tube type.
Has anyone else used these pumps in a similar installation (successfully)? Rule do a similiar product
Fish! HARD!
randall df223
Posts: 6454
Date Joined: 08/08/11
Bump
Bump
Fish! HARD!
Rob H
Posts: 5745
Date Joined: 18/01/12
doesnt seem to have a
doesnt seem to have a pressure switch on it?
On my boat its set up with a deckwash pump, with valve to the live bait tank (which I only use for bleeding fish) plus the hose and handpiece.
Just open the valve for the tank and it runs, close it and the handpiece works like a garden hose.
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randall df223
Posts: 6454
Date Joined: 08/08/11
I assume there is a built in
I assume there is a built in non return valve between the deck wash and the live bait tank pump, so the deck wash doesn't drain the live bait tank?
Fish! HARD!
Rob H
Posts: 5745
Date Joined: 18/01/12
its a diaphram pump, water
its a diaphram pump, water cant flow thru it unless its running.
Also the bait tank input is above the tank overflow so it is always above the water level.
But whatever you do, you MUST fit a seacock between the intake and pump if its below waterline.
Give a man a mask, and he'll show you his true face...
The older you get the more you realize that no one has a f++king clue what they're doing.
Everyone's just winging it.
Sea Hunter
Posts: 148
Date Joined: 04/07/13
hole through hull
I had a shared pump for live bait and deckwash. I found that it did neither effectively. i kept the pump for live bait only and it was far better. I since had to replace it and did so with same pump from rule. It was a fair bit cheaper than you link. as for the deckwash, you not only heed the volume of water but also the pressure. The pressure is the key to blasting off bait off the bait board etc also good for squirting pesky mutton birds. As for the pick up, if you already have one that is effective I would leave it alone, If you need more flow, then drilling through the hull and making sure the fitting is sealed is no big drama. Do you have an automatic bilge switch? alternatively as the live bait tank filler is above the water line there should be no worry about drain it when you wash the deck, it would just run slower with them both running.
Sea Hunter
Posts: 148
Date Joined: 04/07/13
hole through hull
I had a shared pump for live bait and deckwash. I found that it did neither effectively. i kept the pump for live bait only and it was far better. I since had to replace it and did so with same pump from rule. It was a fair bit cheaper than you link. as for the deckwash, you not only heed the volume of water but also the pressure. The pressure is the key to blasting off bait off the bait board etc also good for squirting pesky mutton birds. As for the pick up, if you already have one that is effective I would leave it alone, If you need more flow, then drilling through the hull and making sure the fitting is sealed is no big drama. Do you have an automatic bilge switch? alternatively as the live bait tank filler is above the water line there should be no worry about drain it when you wash the deck, it would just run slower with them both running.
randall df223
Posts: 6454
Date Joined: 08/08/11
My deck wash is pressurized
My deck wash is pressurized through its owe pump. I suppose my concern is would there be enough water supply through the pick up point as opposed to a though hull installation. The sealing of a skin fitting doesn't concern me, it's the potential to split the hose above it that worries me. Avoiding that is my preferred option.
Fish! HARD!
Rob H
Posts: 5745
Date Joined: 18/01/12
personally Im not a big fan
personally Im not a big fan of auto bilge pumps except for moored boats.
Better setup is manual with an alarm.
With an auto pump, if there is water ingress and the pumps starts and stops automatically, you wont know until either;
1/ the battery runs flat and the boat sinks or begins to swamp
2/ the fuse blows and the boat sinks or begins to swamp
3/ the pump can no longer keep up and its then too late to do anything short of taking out the bung and speeding around
Give a man a mask, and he'll show you his true face...
The older you get the more you realize that no one has a f++king clue what they're doing.
Everyone's just winging it.
randall df223
Posts: 6454
Date Joined: 08/08/11
OK, I am starting to think a
OK, I am starting to think a through hull installation:
Skin fitting -> elbow -> gate valve -> pump -> hoses to tank / deck wash.
The elbow is necessary due to space restriction.
What is best to use through aluminium? Bronze or stainless steel? I know that s/s causes alloy to corrode, what about bronze, is that a better option? The skin fitting, elbow, and gate valve will all be one or the other, that way there is a solid durable structure on the water side up to, and including the gate valve....
Fish! HARD!
Rob H
Posts: 5745
Date Joined: 18/01/12
Whatever you do, dont use
Whatever you do, dont use bronze against ally.
Use stainless and bed it in sikaflex.
If you bed the flange with say a couple of tiny pieces of matchstick, rubber etc to keep the flange/hull apart 1 or 2 mm then after the sika has set nip up the inner nut a little more that avoids squeezing all the sika out and getting metal to metal contact.
Give a man a mask, and he'll show you his true face...
The older you get the more you realize that no one has a f++king clue what they're doing.
Everyone's just winging it.
randall df223
Posts: 6454
Date Joined: 08/08/11
Thanks Rob. Stainless steel
Thanks Rob. Stainless steel it will be. Yes I am already aware of letting the sika flex set prior to tightening the seal. not only for prevention of metal to metal contact, also provides a better water tight seal.
:)
Fish! HARD!
peterm8
Posts: 45
Date Joined: 25/10/13
Bronze and ally is a bad idea.
There is a compound called Duralac which is best for preventing galvanic corrosion between ally and stainless. Be careful when applying it though. Pete
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