How do I replace the membrane ultrafilter set for my LifeStraw Max?
When it's time to replace your membrane ultrafilter set, follow the below instructions. Remember: these filters work as a set and must be replaced at the same time.
Make sure the water source is not connected while replacing filters.
1. REMOVE MAX LID
Slide the LifeStraw Max lid locks toward the middle of the unit, holding each pair together while lifting the top lid simultaneously.
2. DISCONNECT WHITE FILTER HOUSING BRIDGE
Disconnect the top filter housing bridge (white) from the filter cartridges by pushing the two rectangular tabs toward the center of the box while pulling the white housing bridge upwards toward the edge of the container until it is fully disconnected.
3. DISCONNECT BOTH BLUE MEMBRANE ULTRAFILTER CARTRIDGES
Uninstall each blue membrane ultrafilter cartridge by first disconnecting the top cartridge connector and next the bottom cartridge connector.
Lift both cartridges out of the box. Discard.
4. INSTALL NEW FILTERS
Insert each unused membrane ultrafilter cartridge into place. One at a time, align the bottom connector of the cartridge to its fitting at the bottom of the Max and press down firmly. Ensure each side connector of the cartridge is also firmly connected to its fitting.
5. RECONNECT WHITE FILTER HOUSING BRIDGE
Make sure that the bottom of each blue cartridge is in place before reconnecting the top filter housing bridge until it clicks into place and is fully locked.
Place the top lid back onto the top of box, slide the lid locks toward the corners. Optional: screw tightly to lock lid.
NOTE: Prior to first use with new filters, run the LifeStraw Max for up to 2 minutes, making sure to discard water prior to normal use.