Hard water can be a nuisance, leaving mineral deposits on your dishes, clothes, and even your skin. And while professional water softening systems can be pricey, many people turn to DIY solutions to combat this issue. However, not all DIY water-softening efforts will work for you. In fact, some can be downright damaging to your plumbing system or even cause more issues than they solve. So, if you're considering a DIY water-softening solution, read on to learn some common mistakes to avoid.