MSR HyperFlow MicroFilter Maintenance, Troubleshooting, Repair and Replacement Parts

HyperFlow MicroFilter Information:

Manual:

• HyperFlow MicroFilter Manual

HyperFlow parts that can be purchased from our website:

For spare or replacement parts, we are adding more parts regularly you can see them all on the Replacement and Repair Parts page on our website. Specific to the HyperFlow we have: 

• Filter Cartridge & Maintenance Kit
• Small Filter Check Valve - Single units now available online
• All other parts for the Hyperflow diagram above will currently need to be ordered via our support staff: Please Submit a Request. Include part numbers for quicker service. 

You can find maintenance and troubleshooting information regarding the MSR HyperFlow and many more products and topics on our MSR YouTube Channel.

For HyperFlow specifically we have some tips for cleaning and maintaining your filter as well as how to preform an integrity test:

Troubleshooting Advice:

The prefilter on my MSR HyperFlow won’t lie flat. What can I do?
This can happen from tightly winding the hose around your filter for storage. To get the twists out of the hose, simply pull straight out to stretch it. You can also pinch the hose at one end and slide your fingers all the way down to the other end, allowing any coils to unwind on the way.

Why Backflush?
You must backflush regularly to maintain optimal performance of the filter cartridge. This is especially true in murky or very silty water. Since hollow fiber is not a depth-based media like ceramics, you don’t clean by removing clogged material from the exterior of the filter media. Instead, you must rinse the particulate that collects on the outside of the Hollow Fiber membranes. Infrequent backflushing makes the particulate harder to remove and more difficult to restore the media’s flow capacity. We recommend backflushing anywhere from every 8 liters to after each use, depending on water quality. The more you backflush, the better your flow performance and the longer life you can expect from your filter cartridge.

How do I backflush?
Click here for a video demonstration. Before leaving for the field give it a couple practice runs at home.

If you do air lock the filter cartridge, you will just need to reverse the check valves to their forward flow orientation, and pump water forward through the pump a couple of times. You have not damaged the fibers by air locking the filter.

I am having trouble backflushing. I pull back on the pump and no water comes through into the pump cylinder.
The most common problem with backflushing is getting air-lock in the filter cartridge. This can be avoided by ensuring that there is ONLY water (no air) present at the Pump Outlet. Read through the instructions for backflushing and check out the instructional video for assistance.

If you are still having trouble, need an unlisted part or feel that the product may have failed while within the 3 year warranty; Please Submit a Request. Include a receipt if applicable and photos or description of the issue; our support team will follow up as soon as we can. 

A concise list of part numbers are just below for reference when placing an order, please copy/paste your part number and description to prevent errors: