Dan(NM)
Well-known member
I cleaned the fireplace this morning and had a large bucket of pine ash I used to run a quick test using a rusty 3" nail and a silver dime. I spread 4-5" of ash in 2 separate piles the size of the coil, then I laid the nail on one pile and the silver dime on the other. I had an open screen and scanned the dime first, clear high tone, 13/44 12/44 readings from both directions, same thing on the nail, clear iron tones and 35/45 35/50 readings. Buried the nail and the dime under 4" of ash, no effect on the tones or the readings from all directions. I suppose if the ground and rocks were heated along with a mixture of various materials that it would no doubt effect the machines ability to ID properly. Pure ash had no effect on the CTX, file this under the for what it's worth department.