what chemicals did you use to treat the boiler water ?when you test alkalinity and acidity of water in boiler by pH test paper ? the result shows the boiler water is in acidiity . please describe what the possible cause is .
正确答案：Ihaveeverusedthefollowingbrandchemicals:unitordrewandsoonWeshouldkeeptheboilerwater’sphscalebetween105and115Ifthewaterbecomeofacidity(phscaleisbelow10)itismaybecausedbyfollowingreasons:Thewaterhasnotbeengivenenoughblowdownorhasnotbeenfilledenoughalkalinitychemicals
