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My tap water is testing at 14. Is a rodi system going to make that big of a difference? Planning fish only tank.

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7 hours ago, Ladytank said:

My tap water is testing at 14

That's awesome.  I'd probably just run a RO unit without the DI stage.  However, the DI resin would last a really long time with source water like that.


Tap water quality tends to change with things like storms.  A RO system would help with that too.


Is it possible to use tap water in a situation like this?  Possibly.  I would make sure to do larger water changes to help avoid build up of unwanted elements from repeatedly topping off your tank (due to evaporation).

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