Regarding watermakers. Do you have to use certain brands of watermaker 5 micron filters? I had my Cape Horn Extreme installed (replaced actually) in Ft. Lauderdale. They said that if we buy their 5micron filters, we can reuse them 5x, but never to trust other 5 micron filters.
Side story, halden marine service was supposed to reimburse my wife and I for the watermaker they removed from our boat, but never did or replied to my emails about it. I’m sure it’s still collecting dust in the back of their office.
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If I remember correctly, Spectra’s position is that you will void the warranty if you don’t use their filters. I have to use whatever filter cartridges I can find in whatever country I am in when I need to restock. I have not had any issues with my Spectra watermaker due to filters.
As far as reusing them, yep I have done that a lot with any of the pleated type filters I use. Hose the gunk off of them, let them dry, and store for the next go around.