I doubt it as it doesnt really work that way....the metals are in suspension in the solution through chemical bonds. To break these bonds you normally would add acid or raise (or lower depending) PH levels to release metals out of suspension. For example you can take your tap water and raise the PH to above 10.78, at this PH level you will see all magnesium and calcium precipitate out of the solution and eventually will settle to the bottom of your container, it will look like this white fluffy stuff. Go higher than PH 10.78 and metals will start to fall out of suspension........
This is also why PH is so important with plant growth. Only at certain PH levels do these elements become available to the plant......
