Sea chests are essentially plumbed boxes installed in the bilge by the boat builder or dealer. A single supply hose fills a watertight box which contains two to three live well pumps that, in turn, deliver clean, bubble-free seawater to the individual bait live wells. Sea chests naturally go hand in hand with stepped hulls. There are several advantages to this type of system. It helps to remove air and prevent air locks, especially if you have a lot of aeration with stepped hulls. With the pumps mounted outside, you have the benefits of them not air locking and the ease of swapping a pump quickly should the need arise. Sea chests with the pumps resting in the normal accumulation of bilge water can become clogged with sludge and debris and seize from disuse. Finally, a sea chest simplifies the entire system. Everything is condensed with centralized access, meaning an owner doesn’t have to hunt pumps, hoses or wiring if they have a problem.