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Old 21-01-2018, 11:31   #1
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Katadyn PUR 80 membrane replacement?

I have got an old used katadyn powersurvivor 80 watermaker. The cost of replacement of katadyn RO membranes is really high. Does anybody know which housing and membrane manufactured by DOW sold by wateranywhere.com could be used instead the original?
nce http://www.wateranywhere.com/index.php?cPath=22_35
Thanks, Kristof
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Old 21-01-2018, 15:12   #2
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Re: Katadyn PUR 80 membrane replacement?

The old membrane may have a number on it. You could match the rating with a standard membrane and new housing.
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Old 22-01-2018, 04:48   #3
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Re: Katadyn PUR 80 membrane replacement?

Greetings and welcome aboard the CF, Kristof.

Contact Rich Boren (CF member SV THIRD DAY) at: Rich@cruiserowater.com
He sells 21" Dow membranes ($187 as of Oct 2017)
See ➥ http://www.cruisersforum.com/forums/...p/t-19923.html

See also:
The PowerSurvivor “Bible” ➥ http://www.ishipaco.com/katadyn/docs/WatermakerBook.PDF
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Old 22-01-2018, 05:30   #4
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Re: Katadyn PUR 80 membrane replacement?

CF member Tellie ( J.T. @ Halden Marine Service) would be another excellent source.
Cruisers & Sailing Forums - View Profile: Tellie
(954) 515-7077
E-mail: info@haldenmarineservice.com
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Old 22-01-2018, 06:22   #5
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Re: Katadyn PUR 80 membrane replacement?

Because Katadyn watermakers use single piston pumps they are only making water half the time so you need a membrane rated at roughly twice the GPD capacity or about 160 gpd. My Katadyn 160 uses a 2.5 x 21 inch membrane rated at 300 gpd. 2.5 x 14 inch membranes are rated at 150 gpd so should work. These membranes and pressure vessels are available from a number of sources, including AmericanRO.com and wateranywhere.com. I did not see 14 inch membranes on CruiseRO's site, though he may be able to help you. It is important to match the flow rate to the membrane size so a 21 inch membrane is too big for your pump so don't be tempted to try one.
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Old 23-01-2018, 17:29   #6
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Re: Katadyn PUR 80 membrane replacement?

Try M-S2514A (2.5”x14”)
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