How to deal with bacteria growing in touchscreen cleaning equipment

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　　1. The amount of sodium hypochlorite added should be adjusted accordingly based on the bacterial count in the water source. In addition to regularly testing the bacterial count, it is also necessary to monitor the free chlorine level at the inlet of the mixed ion exchange column, to prevent excessive free chlorine from affecting the proper operation of the resin. 　　2. Be mindful of contamination in the water supply faucets; those that are used less frequently are prone to microbial contamination. Once contaminated, they cannot return to their original state unless flushed with water for an extended period of time. 　　3. Sodium hypochlorite solution is prone to oxidation and decomposition; if it is used for an extended period of time or if the system is shut down for long periods during holidays, in addition to draining water from the tank to allow the reverse osmosis membrane to operate for a few hours from time to time in order to keep the system active, it is also necessary to replace the sodium hypochlorite solution at appropriate intervals. 　　4. Mixed ion exchange columns are usually operated in a one-in-use and one-backup configuration. Bacteria can reproduce rapidly in stationary Qingdao electronic ultra-pure water systems; therefore, the backup mixed bed is regenerated before it is put into use to ensure effective sterilization.