It should be diluted to the concentration of 0.1% (based on solid content).It is better to use neutral or desalted water.
Waa in lagu qasi karaa isku-uruurinta 0.1% (iyadoo lagu saleynayo waxyaabaha adag).Waxa fiican in la isticmaalo biyo dhexdhexaad ah ama qafiif ah.