I'm pretty new to rodi filters and have no idea how to fix these two leaks. My unit is a new spectrapure 4 stage 90 gpd. The leaks are the inlet and outlet of the middle carbon filter.
What the poster above states try unscrewing all fittings and wrap them in Teflon tape. This should seal them up... if its new i would also call the company they might send you new elbows.
Got the leaks fixed, I did have to take it all apart. The elbow was easy and the nut was a little more complicated. I thought that I had to turn the nut to tighten it but actually that nut is just a spacer so I had to completely spin the carbon and sediment filters four complete turns to tighten the bolt into the carbon filter.