 Re: Resin Filter vs Sulfate
I may have found the resin filter you were talking about. If you were asking about the Pentek BBF1-20MB here is what I know. With water as you described (500 ppm sulfate and some nitrate) this filter will only last for about 15 gallons. Obviously if the water has a lower ppm the filter will last longer. It will remove small amounts of Nitrate and Nitrite.
Thank you,
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