Hey all, im still here and following. Things have become stagnant for me (I guess you can consider this a good thing) I've had the tank going for almost a week. Don't have any livestock & have been using the power of prayer to ensure I do not come home to a watery disaster. Do have to reset the siphon.
I know most of here are WAY passed this point but for the newer folks who are tagging along like myself who are at a similar stage or even earlier and have a HOB overflow. here are some tips that I found helped get the siphon going.
I put plastic food wrap around one of the ends of the U tube. Then I filled the tube as much as I could with water and placed the plastic on the other end of the u tube. I made sure there was water within the box in the DT and dumped a cup of water into the overflow where to U tube is seated. then I flipped the U tube into the chamber, once I removed the plastic a siphon started to occur. There will be an air bubble, to get rid of the air bubble what I did was lowered the box in the DT to allow an increased influx of water to enter DT chamber thus increased the pressure in the U tube and pushing out the air bubble. there might be a tiny air bubble left, just shake the u tube and it will work its way down into one of the chambers and out of the u tube.
I tried to sucking out method which ended up going terribly and filled my mouth multiple times with saltwater. I threw up LOL.