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| whether the live well is recirculating (closed system) or draining (fresh water coming in), the water is getting aerated as it jets into the well, creating bubbles and diffusing oxygen into the water.
i'm of the opinion that there is probably a higher oxygen content in fresh water most of the time, so usually i have the water draining out the bottom and new water pumping in the top.
however, if the lake water is warm or for some reason low oxygen, i'll use ice to cool it down and then recirculate the cool water rather than introducing new warm water...this is particularly helpful when using suckers. i also stick a portable Frabill aerator into the livewell to boost oxygen levels.
i'll also use Recirc if i'm going to be running the boat at speed - the suction pulls water out of the well and it's tough for the pump to get fresh water to pull in. | |
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