Just a few words of advice to help you on your venture.
First we are PSD’s or Public Safety Divers and not Public Service Divers. I don’t care what they call us but that’s what it is.
Being certified as a Recreational Rescue Diver has absolutely nothing to do with PSD. Our training is so contradictory to Recreational Diving we don’t let our members go further than OW.
A lot of people die after they get certified thinking they can start up a commercial diving operation, no matter how small it may be. Cleaning boat bottoms and retrieving stuff from marinas has so many hidden dangers it shocks people into disbelief.
Getting something out of a small pond or body of water can be very deadly with a plethora of hidden dangers. Not just what is in the water but how you configure your gear can be a real serious issue. The wrong thin in the wrong place for a given situation could be deadly.
Start out with this book:
Barnes*&*Noble.com - Books: Encyclopedia of Underwater Investigations, by Robert Gordon Teather, Paperback, 1st ed
Read it, read it again and pay very close attention to the contents between the covers. Shop around and it may be a bit cheaper than the link I provided.
This is not a game. It better not be an ego thing and most important it is a very serious style of diving.
Also in nearly every area you must have an emergency service connection to get on a team and get the training NEEDED.
Good luck and go wander around the PSD forum. Spend some time reading past posts and ask all the questions you want.
Also read this:
What is a Public Safety Diver? There is a one liner above the last paragraph. It's very true and happens way to often.
Gary D. (DRI)