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Frequently Asked Questions

What are the proper storage conditions for membranes?  What is the shelf-life of a membrane?

Please refer to our Technical Article:  Biological Fouling on Membranes - Storage, Shipping and System Shut-down.

What lubricant should I use for the seals on pressure vessels and filter housings?

You will need a special lubricant so as to not damage the membrane in your system. This product is sold by our online distributor, and can be found on http://www.wateranywhere.com . The product part # to search for is H-C111DC. Here is a direct link to the page where you can purchase this:     http://wateranywhere.com/item/MOUNTACCESS.htm .

How do you eliminate the unpleasant taste and odor that may be coming from the post carbon filter?

You will need to remove the filters and membrane from the system, sanitize with chlorine and flush. Then replace with new filters.

What is the density of the membrance for Residential Thin Film Membranes? (ie. 0.001 -- 0.0001)

0001 micron "pore size".

What is AM-11?

AM-11 is one of the membrane cleaners we sell. It is generally used for cleaning larger membranes but some companies have used it also to clean smaller residential membranes.

Why is the performance different in different flow rated residential membranes? (24 gpd, 36 gpd, 100 gpd, etc.) The membranes look the same even the number of times rolled up.

The useful area of the membrane material is different in the two sizes. They look the same because of the difference in membrane area is made up by other fabrics.

 What is the difference between dry and wet membranes?

 When the thin-film membranes manufactured they are dry. These dry membranes have an indefinite shelf life, when stored properly. Membranes become wet when they are flushed or tested with water. Once wet the membranes can not be dried. The wet membranes must be preserved to prevent the growth of micro-organisms on them. This is done usually by using a 1-2% solution of sodium metabisulfite. For more details look for information on storing membranes.

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All Content on this site is  intended for informational purposes for experienced water treatment professionals only.  Applied Membranes, Inc. does not assume any liability for any damages caused by the misapplication or misinterpretation of any of the information contained on this website.
Applied Membranes, Inc. 2007