The Edwards Aquifer is a karst limestone formation. Water percolates through fractured rock, dissolving calcium carbonate along the way. This geological process creates the hardness problem that affects every home in Austin. Hardness levels fluctuate seasonally. During dry periods, mineral concentration increases as aquifer levels drop. After heavy rains, hardness decreases due to dilution from surface recharge. These variations mean your home water filtration systems must handle a moving target. A properly designed whole house water treatment system accounts for peak hardness periods, not just average conditions.
Austin adopted aggressive water conservation mandates during the 2011 drought. The city added chloramines to the distribution system as a secondary disinfectant because they persist longer than chlorine in low-flow conditions. Chloramines are harder to remove than chlorine and require catalytic carbon filtration. Many older residential water purification systems installed before 2012 cannot remove chloramines effectively. All Pro Plumbing Austin updates legacy systems with catalytic carbon filters that target chloramines specifically. We also work with homeowners who draw from private wells in western Travis County, where iron and hydrogen sulfide are common issues requiring specialized treatment.