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My old 88 Cajun Maverick (my first bass boat) has a livewell in the stern and a small baitwell in the bow.  It looks like they each have an input pipe, and of course an overflow hole and a drain.  The livewell pump switch is in the front, and it has two settings, on, and automatic.

 

I've never used it.  I'm mostly an C&R guy.  But if I do, what should I do?  I'm assuming it simply circulates fresh water into the well. It doesn't appear to have an aerator.  What does "automatic" do, circulate occasionally, whereas on circulates continuously?

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When my livewell switch is set to auto it kicks on the pump for a few seconds every 4-5 minutes. I have no idea if the timer function is built into the pump or the switch wiring somehow.

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36 minutes ago, Elkins45 said:

When my livewell switch is set to auto it kicks on the pump for a few seconds every 4-5 minutes. I have no idea if the timer function is built into the pump or the switch wiring somehow.

It's in the switch - I did electronics design and construction years ago and a timing circuit is fairly simple and small even using analog parts. With the new programmable, digital chips - one chip to rule them all.

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If you are on the water for 4 or 5 hrs, it automatic the best way to go?  I don't know how much of a drain a livewell pump can be.

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Use automatic if it's 75+ degrees out. The drain on your battery is minimal. 

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What does the temp matter?

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8 minutes ago, billmac said:

What does the temp matter?

The higher the water temp, the less oxygen it holds. Adding fresh water through the aerator increases the oxygen content. 

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Gotcha. Thanks.

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19 hours ago, billmac said:

If you are on the water for 4 or 5 hrs, it automatic the best way to go?  I don't know how much of a drain a livewell pump can be.

If your battery can’t handle the very minimal drain of a livewell pump kicking on a few times an hour then it’s probably not trustworthy enough to reliably crank your starter at the end of the day.

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