Quick Answer
MSR filters require regular cleaning to maintain water flow and prevent bacterial growth, which can be done by soaking the filter in a mixture of water and unscented bleach for 30 minutes every 6-12 months.
Pre-Cleaning Preparation
Before cleaning your MSR filter, make sure to disassemble it according to the manufacturer’s instructions. This usually involves removing the filter element and any other accessible parts. Be sure to set aside any spare parts, such as O-rings or gaskets, to avoid losing them.
Cleaning the Filter
To clean your MSR filter, mix 1 tablespoon of unscented bleach with 1 quart of water. Soak the filter element in this solution for 30 minutes to an hour. After soaking, rinse the filter thoroughly with clean water to remove any remaining bleach residue. Repeat this process every 6-12 months, or as needed, to maintain optimal water flow and prevent bacterial growth.
Reassembly and Testing
After cleaning and rinsing your MSR filter, reassemble it according to the manufacturer’s instructions. Once reassembled, test the filter by attaching it to your water pump and pumping a small amount of water through it. Check for any blockages or leaks, and make any necessary adjustments to the filter or pump before using it in the field.
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