Follow these simple instructions when installing new prefilters, reverse osmosis mem-branes, or deionization resin. Some filters should be flushed when first installed. “Flushing” is no more complicated than running water through the filter without delivering the flush water to other stages in your water purification system.
Hint: An easy way to flush new filters is to temporarily install it as the final stage in your system and allow the flush water to go to a drain.
Sediment Filters No need to flush sediment filters unless otherwise specified on the filter label.
Carbon Blocks Manufacturers recommend flushing carbon block cartridges for at least 10 minutes.
GAC Filters Filters containing granular activated carbon should be flushed for at least 10 minutes, or until the flush water runs clear. Catalytic GAC filters (used to treat tap water containing chloramines) achieve full efficiency after being wetted for 12 hours.
RO Membranes Manufacturers recommend flushing at least 2 gallons of water through new dry RO membranes to remove preservatives before using the product water. Don’t run flush water through later stages in your system. Wet membranes should be flushed for 2 hours, or as specified on the membrane label.
DI Resin Run approximately 1 gallon of flush water through new DI resin before using the product wa-ter. Avoid contaminating (bacteria/mold/fungus, etc.) DI resin. Minimize storage time. Store DI resin in an airtight container with no airspace to keep it moist. Keep DI resin in an opaque container to avoid exposure to light during storage. Shipping bags are appropriate for long term storage. Treat your resin gently! If resin is exposed to freezing temperatures during shipping, allow it to warm at room temperature for 24 hours prior to use. Pack resin as tightly as possible in cartridges.
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