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The Hope Group owns and operates nine Parker Stores at its branch locations in New England providing "while you wait" replacement of hose assemblies and immediate on-hand access to 3,000 Parker hose, fittings and adapters.

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Safely Store Your Membranes For 6+ Months


Why maintain reverse osmosis watermaker membranes?
When the desalinator is not used regularly, the membranes foul due to the decomposing mineral and biological residue left sitting inside. This is especially a risk during the winter months and other long periods of non-use.

How do I keep my membranes from becoming foul?
While the best method to keep your desalinator clean is to use it daily, another method—besides periodically cleaning it—is to store the membranes in a pickling solution. The Hope Group offers R.O. Membrane Element Pickling and Storage options that inhibit bacterial growth while maintaining the high flux and salt rejection of the R.O. Membrane Element.

Storage Rates*
Single Membrane Rack $290
Double Membrane Rack $320
Triple Membrane Rack $340
Quad Membrane Rack $365
* Rate for storage November 1 to April 30 the following year. Additional months will be at a rate of $15 per month.

How does the Pickling & Storage program work?
Our team will do an initial bench test to determine the current life of your R.O. Membrane element, flush, and pickle your membrane for the winter months. Before returning your R.O. Membrane Element our team will flush and bench test to determine the life left in the R.O. Membrane Element.**

Contact us for availability

** Items such as o-rings, end plugs, caps and fittings not included and will be charged additionally. We charge time and materials for additional requested work.



Ask about our Pickling & Winter Storage Program

Contact Us


The Hope Group


70 Bearfoot Road
Northborough, MA 01532

Phone: 508-393-7660

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