Round Rock sits within the same Central Texas limestone geology as Austin, and some distribution zones here test among the hardest readings in the metro. Here's what that means for your home.
Round Rock draws on the same Edwards Aquifer and Central Texas limestone system that runs beneath Austin. Some distribution zones in the Round Rock area have been reported testing as high as 20 grains per gallon seasonally — well past the 10.5 GPG threshold for "very hard." Municipal treatment also uses chloramine, which standard carbon filters aren't built to remove effectively.
Homes in Round Rock tend to see scale buildup and appliance strain even faster than the Austin average, simply because the mineral load is often higher.
Want to see the actual test results for your zip code? The Environmental Working Group compiles utility testing data by location — look up Round Rock's report on EWG's Tap Water Database →
Given the higher seasonal hardness reported in parts of Round Rock, PureWay's anti-scale pre-filter stage is especially valuable here — it works continuously with no salt, no regeneration cycles, and no electricity, even as mineral levels climb seasonally.
Free on-site test, usually scheduled within a few days.