I SUGGEST YOU TO USE SODIUM ...

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I SUGGEST YOU TO USE SODIUM HYPOCHLORITE AND ADD 0.5 CAUSTIC SODA (NaOH) AND MIXED IT IN YOUR CHEMICAL CLEANING TANK FOR FILTER CLEANING CIRCULATE IT FOR 1/2 HOUR PH MUST BE 11 TO12.5 AND AFTER THAT FLUSH YOUR FILTER MAKE IT NEUTRAL  PH AND AFTER ADD HCL 1% TO 2% PH MUST BE 2 TO 3.5 AND CIRCULATE 1/2 HOUR ANS SOAKED IT FOR 8 HOURS.

 

 

REGARDS

ABDUL GAFFAR - SENIOR CHEMIST