Dredge Trips

As you have probably noticed, there are a number of “dredging trips” on the 2008 schedule. These are mid- week trips with small groups (about 8 divers) working together to VACUUM some artifacts off of local wrecks. Time and tide has worked together to hide many artifacts from plain site. Some very nice, & well preserved artifacts are often buried in the sand on, & near wrecks, especially the older, and more covered over wrecks.

The John Jack has invested thousands of dollars in underwater dredging equipment, that sucks out the sand and helps us find these buried treasures. The John Jack utilizes an Enrique Alverez designed dredge, that works off a water pump. At the end is a 4" stainless tube that works like a vacuum. Teams of divers take turns working the dredge on the bottom to dig a large deep hole, in a short time. At the end of the day, everything that all the divers have found is split up among the divers. In this way, even if your turn at the dredge was not productive, you helped and contributed, you share in the finds.

It is a really fun way to dive these older wrecks such as, the Brunet, Emerald, Mohawk Etc. Being a water dredge, the suction is not effected by depth. We will work wrecks in 60 - 100 Ft. Of water. The divers will be split up into teams of two, working with similar bottom times. If the first team is doing say a 30 Min dive, the second team jumps in 25 min after the first. The first team then hands off the dredge to the second team. The second team might do a 45 min. dive. The third team goes in 40 min after the second team, and takes the dredge over. We round robin thru the teams 4 to 6 teams max, then the first team goes in again, repeating the process, with shorter bottom times. The last team does clean up, and shoots the dredge to the surface on a lift bag.

In addition to the water dredge, we also have an ordinary gasoline powered pressure washer with a really long hose. If the dredgers encounter very hard bottom we can send in the pressure washer. It can cut through, and lessen up the sand, making the dredge more effective. If necessary, we can form three man teams, to make the work easier.

There are many Facets of diving. On the john jack, we try to give you access to as many of them as possible. Every one is not a deep, or technical diver, nor do they want to be. On the John Jack, we recognize and understand that. WE gear ourselves to let many different levels of divers come out and have fun, often working hand in hand, shoulder to shoulder. Try a dredging trip, and see what you can dig up. We also welcome non-dredge divers to sport dive on our dredging trips. We find that stirring up the bottom, is like a dinner bell for black fish and sea bass.