Email harvesters and bots are roaming the Internet looking for email addresses to add to their spam lists. For every email that is on a public facing page, that email address can expect to receive 800 spam messages the following year. Web masters have created clever ways to protect against this by writing out email addresses (i.e. help [at] cloudflare [dot] com) or by using embedded images of the email address.
Second, a swimmerâs body has a pH between 7.2 and 7.8, so if the. pool water isnât kept in this range then swimmers will start to feel irritation of their. eyes and skin. Keeping the pH in this range will balance chlorineâs germ-killing.
Chlorine Chemistry. Chlorine is the predominant method of disinfecting water and wastewater and has been used for almost 100 years in the United States. Chlorine can be added to water as chlorine gas, an aqueous sodium hypochlorite solution, or solid calcium hypochlorite. When chlorine is added to water in any of these forms, it creates hypochlorous acid.