PH e loketseng ea metsi a tub e chesang e pakeng tsa 7.2 le 7.8, e leng alkaline hanyenyane.PH e tlase e ka baka kutu lisebelisoa tsa libateng tse chesang, athe pH e phahameng e ka baka metsi a koahetsoeng ke maru, ea halefisa letlalo, 'me ea fokotsa katleho ea lik'hemik'hale tse bolaeang likokoana-hloko.

E 'ngoe ea litsela tse bonolo ka ho fetisisa tsa ho hlahloba pH ea metsi a hau a chesang ke ka lisebelisoa tsa tlhahlobo, tse ka fumanoang mabenkeleng a mangata a matamo le a spa.Haeba pH ea metsi a hau a chesang a le tlase haholo, o ka phahamisa pH ka ho eketsa pH (eo hape e bitsoang soda ash) metsing.Ho bohlokoa ho eketsa pH ea metsi butle-butle le ka tekanyo e nyane, kaha ho eketsa haholo ka nako e le 'ngoe ho ka etsa hore pH e fetohe haholo ka lehlakoreng le fapaneng.Kamora ho eketsa pH, etsa bonnete ba hore o khutlisetsa metsi ka mor'a lihora tse 'maloa ho etsa bonnete ba hore pH e ka har'a sebaka se lakatsehang.Ka lehlakoreng le leng, haeba pH ea metsi a bate ea hau e chesang e phahame haholo, u ka e theola ka ho eketsa pH reducer (eo hape e bitsoang sodium bisulfate).Joalo ka li-pH tse eketsang, ho bohlokoa ho eketsa li-pH tse fokotsang metsi butle-butle le ka tekanyo e nyenyane, ho hlahloba metsi hape ka mor'a ho eketsoa ka 'ngoe ho netefatsa hore pH butle-butle e fihla sebakeng se loketseng.

Ntle le ho lokisa pH ea metsi a hau a chesang, ho bohlokoa hape ho hlahloba khafetsa le ho boloka maemo a thata a alkalinity le calcium.Alkalinity e sebetsa e le tšireletso bakeng sa pH mme e thusa ho thibela liphetoho tse matla, athe k'halsiamo e thata e thusa ho thibela ho bola ha lisebelisoa tsa libateng tse chesang.Haeba maemo ana a le sieo ka har'a maemo a khothaletsoang, katleho ea tokiso efe kapa efe ea pH e ka senyeha.

Ka bokhutšoanyane, ho boloka pH e nepahetseng ka bateng ea hau e chesang ho bohlokoa bakeng sa bophelo bo bolelele ba bate ea hau e chesang le bophelo bo botle le boiketlo ba basebelisi ba eona.Ka ho hopola lintlha tsena, u ka tsoela pele ho rua molemo litlamorao tsa eona tse khathollang le tse thobang lilemong tse tlang.