24 hours pool pump pool safe 24 hours retest helps achieve correct dosage equipment steps pool surfaces inviting pool pool preferably pool offers adding water season long prevent scaling stain remover nontoxic formula remove metals prevents scaling potential issues ineffective treatment ph alkalinity treatment process ideal range desired reduction evenly distributed running 6 circulate return jets manufacturers instructions frequent cleaning sanitizers keeping cloudy ensuring pool equipment pool 1 test test results test kit pool water water run tips outlined incorrect application sanitizer levels desired level hard water water hardness water softener water softeners reduce calcium hardness pool hard water pool causing scaling manage water hardness reducing calcium levels pool water softeners water softener test required amount based calcium hardness level pool maintenance professional pool chemistry problems water softness tips preventing scale buildup encounter persistent issues distribution alternatively add enviro water softener water softener select enviro water softeners equipment regular testing equipment preventing damage current hardness level application methods overuse environmentally friendly option pools volume calculate specialty chemicals designed