You can go online at Costco.com and apply for a Costco Membership there by adding it to your shopping cart if you are shopping for the first time. Your membership card will be mailed to you within 7-10 days but you can actually shop at the online store immediately.
The three most common chlorine-containing substances used in water treatment are chlorine gas, sodium hypochlorite, and calcium hypochlorite.
18 On Tap Spring 1999 by Babu Srinivas MadabhushiNDWC Technical Assistance SpecialistThe use of chlorine to disinfect water pro-duces various disinfection byproducts, whichhave been classified mainly as halogenated andnon-halogenated byproducts.