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DongShenYin

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Ok guys, I finally broke down and bought a RO unit from Aquatic Reef Systems. (For less than my bugeted $150, yay!) It's due here on Thursday. I'm going to use a faucet adaptor and hook it up to a sink. The Hannah TDS meter reads 46 for my water... since I have a 7g nano and don't plan on using the RO unit for anything else, how often do you guys think I should change the filters? Once a year? With the TDS so low, do I need a DI unit? I assume the RO unit will come with instructions, but any tips on what and what not to do? Thanks
 
A

Anonymous

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Depends on the amount of sediment, you probably should be fine if you change the prefilter once every year or every two years. Use the TDS to monitor it every 3 months to make sure.

You probably don't need any DI, but if you do, it will last you a long, long time.
 

Ben1

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I change my sediment cart. every two months and carbon block with a guzzler every 4 months, the DI is changed when I start seeing a TDS above 2-3.

It depends on how much water you are using , I use a lot of top off and do 40 gal of water changes every two weeks.
 

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