Well Gus it wa sa good thing I heeded your warning. I filled with distilled water to check for leaks and before I could get a half gallon in it was leaking out
But it also proved that my drain works
I looked into the problem and it that I used the wrong type of pipe. I didnt do any research on pvc pipe before the build but it turns out they make cellcore or foam core pipe and solid pvc pipe. and the cellcore looks exactly the same until you look really close at the cut edge of it. it is a thin layer of pvc then foam then a thin layer of pvc. I never noticed a differance. But the foamcore will not seal the threads
So its back to the drawing board and I have now decided to just do a 18 inch piece of 6 inch and put the hose barbs in the end caps instead of the side of the pipe. One end will be in and the other will be out.
I will post pics when it is done. But let this be a word of warning. If you plan to tap the side of the pipe, Look at the type of pipe. It seems to show up at about the 3 inch and above pipe. Also I will have to totally remove the unit and install new hoses to accomidate a new pipe I think. This will not be a fun or easy fix. I hate these kinda problems.
But at least it was just water and for that a big THANK YOU GUS. I was in such a hurry to see it up and going I have the mixture of lye and distilled ready to put in and I was planning to fill with it once I got the flash arresters in.