new DIY downflow calcium reactor

[Chin_Lee]

Mark
I bolted the lid onto a flange so the holes are all aligned. Then I used a heat gun to heat both sides until slightly soft and then pushed it down on a piece of 2 inch coupling through the flange.

Tony
The probe holder is sticking out through the side of the upflow tubing. I put it there so its out of the way where I won`t need access to the reactor. I used a half inch gland nut that had a male NPT which screwed into a FPT fitting.

The bottom of the media chamber is an acrylic doughnut that has a 2-3 inch hole in the middle and this ring is glued into place. I cut eggcrate to fit on top of the doughnut, then two layers of enkamat, and another doughnut to squish the enkamat down. When I want to remove the chamber, I drain water until its below the flange, unscrew the nylon bolts, and unscrew the top union.