Joseph020 Posted January 15 Share Posted January 15 I was wondering what you serious “Water” hunters use to weigh down your coils. Someone once suggested taking a “tube” sock, filling it with sand, tying it in a circle (like an ankle weight) and sliding in over your lower rod having it lay on the coil. I’ve also seen bandanas (to keep you cool) with Silica Gel sewed in to them. They absorb the water and expand making them heavier than they are dry. I wonder if you had enough in there, would that work also? Thanks! Link to comment https://www.detectorprospector.com/topic/27490-coil-weights/ Share on other sites More sharing options...
midalake Posted January 15 Share Posted January 15 No issues with Minelab products. 😎 Link to comment https://www.detectorprospector.com/topic/27490-coil-weights/#findComment-288683 Share on other sites More sharing options...
Skull diver Posted January 15 Share Posted January 15 3 hours ago, Joseph020 said: I was wondering what you serious “Water” hunters use to weigh down your coils. Someone once suggested taking a “tube” sock, filling it with sand, tying it in a circle (like an ankle weight) and sliding in over your lower rod having it lay on the coil. I’ve also seen bandanas (to keep you cool) with Silica Gel sewed in to them. They absorb the water and expand making them heavier than they are dry. I wonder if you had enough in there, would that work also? Thanks! I wouldn't put any of these things directly on the coil, for no other reason than wear over time...Maybe the shaft lower end it is a much proper setup. But actually I wonder with wich coil are You searching with, to require weight against floating... Link to comment https://www.detectorprospector.com/topic/27490-coil-weights/#findComment-288702 Share on other sites More sharing options...
Geotech Posted January 15 Share Posted January 15 3 hours ago, Joseph020 said: I’ve also seen bandanas (to keep you cool) with Silica Gel sewed in to them. They absorb the water and expand making them heavier than they are dry. I wonder if you had enough in there, would that work also? In the water, the silica gel will weigh exactly the same even when it's saturated. In other words, using water to add weight to a coil in water doesn't work. What detector & coil is this for? Decades ago, White's sold a weight you slid down inside the lower rod. Another company (I don't recall) made a collar weight that went around the lower rod at the knuckle. And, yes, some people just tie a sock with sand in it to the rod. Preferably you want something that doesn't add drag so I would lean toward putting weight inside the lower rod. You could buy an extra lower and pour cement or epoxy in the bottom of it until you get the buoyancy you want. 5 Link to comment https://www.detectorprospector.com/topic/27490-coil-weights/#findComment-288705 Share on other sites More sharing options...
snakejim Posted January 15 Share Posted January 15 5 minutes ago, Geotech said: In the water, the silica gel will weigh exactly the same even when it's saturated. In other words, using water to add weight to a coil in water doesn't work. What detector & coil is this for? Decades ago, White's sold a weight you slid down inside the lower rod. Another company (I don't recall) made a collar weight that went around the lower rod at the knuckle. And, yes, some people just tie a sock with sand in it to the rod. Preferably you want something that doesn't add drag so I would lean toward putting weight inside the lower rod. You could buy an extra lower and pour cement or epoxy in the bottom of it until you get the buoyancy you want. I built an underwater Fisher Gold Bug years ago and cement in the lower rod worked great! 2 Link to comment https://www.detectorprospector.com/topic/27490-coil-weights/#findComment-288709 Share on other sites More sharing options...
Skull diver Posted January 15 Share Posted January 15 2 hours ago, snakejim said: I built an underwater Fisher Gold Bug years ago and cement in the lower rod worked great! I'd love to see pictures of this one of a kind piece... Were You using it in saltwater? Link to comment https://www.detectorprospector.com/topic/27490-coil-weights/#findComment-288730 Share on other sites More sharing options...
snakejim Posted January 15 Share Posted January 15 23 minutes ago, Skull diver said: I'd love to see pictures of this one of a kind piece... Were You using it in saltwater? I used the Fisher 1280-X Aquanaut control housing with the Gold Bug electronics inside. I called it a Water Bug. It was used in salt water in Florida but didn't do very well because the ground balance was for an iron rich mineral environment not salt. I originally built it for fresh water use. I had to rebuild it once as the coil cable outer shield was cut and water seeped up the cable into the electronics. I'll ask the fellow that I built it for what happened to it. That was 30 years ago. For your purpose Fisher still sells the 1280-x underwater detector. List prices us $539.99. Engineered for performance in sea, surf, or shore environments, the 1280-X combines robust construction with advanced technology to deliver reliable detection capabilities. 2 Link to comment https://www.detectorprospector.com/topic/27490-coil-weights/#findComment-288731 Share on other sites More sharing options...
Steve Herschbach Posted January 15 Share Posted January 15 9 hours ago, Joseph020 said: I was wondering what you serious “Water” hunters use to weigh down your coils. I have to say that serious water hunters use coils that are made to be neutral underwater. It's actually not the norm these days to sell coils that float much if at all, unless you are talking about PI detectors designed for desert use. I recently took a Garrett Axiom coil which floats like a cork, removed the bottom housing, cut out the foam, and filled with non-conductive cement crack filler. Worked like a charm underwater but you sure would not want to use that coil above water! 3 Link to comment https://www.detectorprospector.com/topic/27490-coil-weights/#findComment-288732 Share on other sites More sharing options...
Geotech Posted January 15 Share Posted January 15 1 hour ago, Steve Herschbach said: I recently took a Garrett Axiom coil which floats like a cork, removed the bottom housing, cut out the foam, and filled with non-conductive cement crack filler. You were smart to do that. One reason I asked which detector & coil he's using is because forcing an air-filled coil (like with the Axiom) underwater is a recipe for disaster. It takes very little water pressure to deform the plastic, crack the seam, and fill with water. 5 Link to comment https://www.detectorprospector.com/topic/27490-coil-weights/#findComment-288737 Share on other sites More sharing options...
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