DEODORANTS The use of deodorants in school buildings is not favored except in some rare cases. ... In an old building it may be necessary to chop out the section of old concrete that is saturated with urine to get rid of the trouble. The bad odor ... Tri- sodium phosphate in hot water should be strong enough to remove most stains, but if not, sodium bisulphate (niter cake), crude grade, can be used. This isanbsp;...
|Title||:||The School Custodian's Housekeeping Handbook|
|Author||:||Henry Harold Linn, Leslie C. Helm, Kazmer P. Grabarkiewicz|