I just bought my first house and plumbed the RODI down in the basement. For the drain, I put a tee on one of my drain lines and then a p-trap with an extension. The RODI drain is then tapped above the trap. It should be fine, but I'm paranoid about any backflow from the drain to my RODI, or worse, the water supply line. Want to put a check valve on the drain line of the RODI for piece of mind
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