[size=medium]Good morning, hope everyone is well. I have been doing some homework and have a few questions. Do any of the major Detector companies make a waterproof version deep finding Two Box style detector? I know Garrett has a two box that can mount to a GTI 2500, but I am wondering would a two box be submersible and work underwater, and if not, will it penetrate through water and silt (fresh water), if used above the water? Here's my situation. I have located a potential fresh water find that consists of early military relics. Cannon Balls, ammunitions, etc. I believe at least three boats went down. The water isn't very deep now to my knowledge. I would like to recover some of these items and at the least pinpoint the exact location. Also, I know some brass cannons were used back then (late 18th century), but what are the chances that the cannonballs would have survived under water for at least 200 years? Anyone here performed this type of recovery? I am not prepared to buy a tow behind or 5000.00 and up detector at this time as I am not sure the recovery would balance the investment. Thank you, Tim[/size]