How often do you change your Ro/Di filters?
Printed From: Utah Reefs
Category: Specialized Discussion
Forum Name: Equipment
Forum Description: This is the place to ask question about reef equipment.
URL: http://www.utahreefs.com/forum/forum_posts.asp?TID=62154
Printed Date: October 20 2025 at 3:43pm
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Topic: How often do you change your Ro/Di filters?
Posted By: HPballer76
Subject: How often do you change your Ro/Di filters?
Date Posted: February 13 2013 at 6:45pm
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Just wondering how often everyone changes there Ro/Di filters? I've been using mine for about a year now and still get 0 tds water out of them and have good pressure. Is there any reason to change them out before either my tds goes up or I lose pressure?
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Replies:
Posted By: badfinger
Date Posted: February 13 2013 at 6:52pm
Posted By: ReefdUp
Date Posted: February 13 2013 at 7:13pm
It'll depend based on your incoming water quality, usage, and water pressure/temp. I only get about 4 months out of mine, but I go through a ton of water. As long as you're getting low numbers that you're confident in, there's no reason to change that I know of.
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www.reefdup.com
Diving since 2009, reefkeeping since 2007, & fishkeeping since 1987
200g, 75g, & 15g Systems
PADI Advanced Open Water
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Posted By: HPballer76
Date Posted: February 13 2013 at 8:39pm
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That's what I thought, just wanted to double check. I'm getting 2-3 tds going into the last stage and 0 coming out on a brs 5 stage system.
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Posted By: Fatman
Date Posted: February 13 2013 at 10:22pm
Reef'd Up lives close to me and we are on the same water line. I've run my RO filters for a year. I make about 30 gallons a week, more when I forget to turn it off. Lately I've been helping a friend out and have really gone through the water. Mine gives me 2 ppm after the RO and 1 ppm after the DI. I don't see a reason to change them with that performance.
Fat
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