As you can tell from the photos I took today, fall is over and winter has started in Fairbanks. I didn’t get all my projects done, but this is one that’s been at the top of the list since I finished the shed. Because we’re so close to Goldstream Creek, we can’t have a septic field. Instead we have our own sewage treatment plant, built here in town by a company called Lifewater Engineering. It’s a great system, but we had some problems with our configuration last winter. Most notably, the discharge pipe partially froze.
The plant has three sections: a settling tank where the initial waste goes, a section with a substrate and air blower to foster bacteriological growth, and a final tank where cleaned water sits until it’s discharged. A float in the last chamber triggers a submersible pump to rapidly pump all the cleaned water up and out, through he discharge pipe, where it pours onto the ground. The discharge pipe is insulated, and because it’s got significant pitch and the discharge happens all at once, the pipe is supposed to stay clear all winter.
Unfortunately, the discharge pipe isn’t continuous; it’s three sections of ten foot pipe. When the pipe was hanging from a cable strung through the trees, it was very difficult to keep the pipes connected well enough that water didn’t build up at the junctions and freeze. Last winter we had to disconnect the last section of pipe, and most of the water wound up under our house.
To keep the pipe straight, and hopefully assist in keeping the water flowing downhill and out of the pipe, I built a 30 foot long trough by ripping a 45° bevel on the long edge of a series of rough cut 2x10’s. After offsetting the sides by five feet and nailing it together, I had a nice solid structure to support the pipe. I built the stands and intermediate supports today from 2x4’s and 1x6’s. This should make it much easier to work on the pipe if something goes wrong, and hopefully, it’ll keep the sections together and the water flowing.
There are a few more small projects left—like insulating the vent pipe as it passes through the attic, and working on the interior of the shed—but with the snow flying today, it’s time to sit back and hope that this summer’s work was enough to keep the house operational through the long Fairbanks winter.