Just ordered a Stenner. Not concerned about the noise since it will be in a separate sump room. What did it for me us that it takes out exactly the same amount of water it puts back in. No calibration necessary. Simple, and effective. And cheaper than the Renew system which was my other choice. I don't like the liter meter because of the necessity to calibrate the two separate pumps to be sure you are pulling out as much as you put in.
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Current tank: 340g AGE peninsula
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