HT Foam Away is often preferred because it is a high concentrate formula that can be used in a spray bottle. Most foam away formulas require it to be poured into the water. This often results in overuse, which then results in cloudy water. With HT Foam Away, a light directed spray instantly eliminates the foam and lessens the chance of making your water cloudy. The other benefit is, it saves you money, one bottle will last a long time.