Ican someone help me up until now ive been buying saltwater already mixed at store in fear of messing something up. But thats getting costly!!! So today i bought a bug bucket of salt to mix myself. My question is is the water that they sell in the machines outside grocery stores good for mixing salt or does it have to be distilled water? Ive never used one of them machines i dont know if its distilled or drunking or what.