1. Before starting the WFI Distribution Loop for home user, be sure to check whether the system compressed air pressure and heating industrial steam pressure are within the specified range.
2. The WFI Distribution Loop for home user should be kept at the specified temperature and used for circulation. The flow rate of the return water should also meet the requirements. The water for injection should be kept circulating and insulated for 24 hours.

3. If there is a TOC monitor in the WFI Distribution Loop for home user, the UV lamp of the detector needs to be replaced after accumulative working time for a certain period of time, and the pump head of the suction pump of the monitor also needs to be replaced when the working efficiency of the monitor decreases, on average once a year.
4. Sterilize the WFI Distribution Loop for home user and storage tank once a month. After the sterilization is completed, the storage tank, the total delivery, the total return and the key use points should be sampled and tested for all items.
5. As the running time increases, the respirator filter element of the WFI Distribution Loop storage tank is aging and needs to be replaced every six months.
6. After the water for injection system stops circulating for a long time (more than one week of shutdown), the WFI Distribution Loop for home user and storage tank should be sterilized, and the disinfection ultraviolet lamp should be turned off during sterilization.