Sufficient alkalinity also reduces the corrosiveness of water to iron pipes. This is based on solubility, stability, degree of corrosiveness, and availability. One drawback of the Clerici solution is its high toxicity and corrosiveness. The report urged study of its mechanical properties, corrosiveness, grittiness, and effect on electrical systems. Soil resistivity is one of the driving factors determining the corrosiveness of soil. WFNA was sometimes used with an inhibitor compound to reduce corrosiveness, often hydrogen fluoride. Owing to the gas's corrosiveness, special containment materials and handling precautions are required. Claims of less corrosiveness of these products have been controversial however. Utilities will often adjust the chemistry of the water before distribution to minimize its corrosiveness. The drawbacks of a metal pressure reactor (bomb) are set-up, maintenance, and corrosiveness.