B bga78 Jr. Member Jul 31, 2008 21 0 Detector(s) used goldgun, gemini 3, GMT, Raytech laser Nov 30, 2011 #1 hi. what chemical to use to decay concret size 4x5x5 feet Amazon Forum Fav 👍 Minelab PRO-FIND 35 Waterproof Pinpointer Metal Detector for Experts with Tone ID & Adjustable Sensitivity - Grab it through Amazon!
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dazoff Sr. Member Aug 7, 2007 321 3 Lower Mainland Vancouver,BC Detector(s) used To many to say Dec 2, 2011 #2 Muriatic acid That would be the safe way to go as it is water soluble to neutralize after. To speed things up you could use a stronger acid but then handling it becomes an issue.
Muriatic acid That would be the safe way to go as it is water soluble to neutralize after. To speed things up you could use a stronger acid but then handling it becomes an issue.