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Originally Posted by Chief Engineer  What is a good detector that you can use in shallow water 18" to 24"? |
I am no expert on metal detectors in general but google White or Fischer
They both have detectors that will work well on the beach. The control boxes are sealed and the coils can handle getting wet.
Right now I have a JW Fischer Pulse 8X with an extra 18 inch coil on 100 feet of cable.
The machine is good to 200 feet and the extra coil can be dropped straight down and very slowly moved along the bottom. I was trying to come up with a way to tow the big coil a little faster than very very slow but so far I haven't had any real luck.
I have also been playing with some drop down and tow cameras with displays at the helm.
I did have some luck with that recently when I dropped a small aluminum fitting from the top of the mast. It hit the boat then the dock before going in the water. I didn't know exactly where it entered the water and the water is very dirty and cold so I thought I'd try and pinpoint it before I got wet. I dropped the camera and manipulated it around until I saw the piece. When I got in the water I swam right to the part. The whole process took about 30 minutes.
In cleaner water I used the camera to look at the keel, prop and rudder. I also tried inspecting some through hulls. I put the camera on my boat hook and it worked. I could easily see how much growth was in the opening.
One camera tows very well behind the boat and can be adjusted to run just above the bottom. I have used it look for a small diver propulsion vehicle that was lost in relatively clear water.