Karen ErstadKaren Erstad joined the staff of AQUA magazine in 2001. She served as Senior Editor before becoming a full-time stay-at-home mother in 2007. She has a B.A. in English from the University of Wisconsin - Madison and lives in Madison, Wisc.ServiceThe Dirt On Staying CleanHow to keep sand, D.E. and cartridges in tip-top shape.March 11, 2006BuilderCalifornia DreamyPool and spa maximize views of the San Fernando Valley.February 11, 2006SpasSwimming Is Just The BeginningIlluminate the many uses of a swim spa and watch sales light up.February 11, 2006BuilderNatural WondersHigh-tech methods make ancient materials accessible.January 11, 2006BuilderInfinite Family FunGrassy poolscape extends amusement outdoors.January 11, 2006RetailBeautiful Or BustFine showroom design can lift your dealership above the crowd.November 11, 2005BuilderSolid As A RockWhere there's a will and a big wall, there can be a pool.November 11, 2005PoolsEdging Toward ParadiseCosta Rican pool brides heavens and earth.September 11, 2005PoolsCovert OpsTennessee builder crafts discreetly covered fiberglass pool.August 11, 2005RetailFine RedesignBuilding your storefront on the Web.August 11, 2005Previous PagePage 10 of 14Next PageTop StoriesChemicalsPool Power PyramidA new approach to water balance shows how chlorine, pH, alkalinity and borates work together.Builder2026 Awards of Excellence: Gold Winners (Part 2)Builder2026 Awards of Excellence: Gold Winners (Part 1)Business OperationsHow AI is Redefining the Modern Pool BusinessSponsored ContentIndustry Spotlight: LG Electronics