Yes, I'm sloppy with the primer. I hate that shit. lol
So what are we looking at here?
This is the back side of the back two buckets. This part in front will be along the back wall of the tent.
What you can see here is the main return coming out of the bucket into a tee fitting. One direction, towards the center with the bigger pipe is the main return. You can see the valves and such, into the center tee, which then goes on to join the front two buckets.
From the other side of the tee at the bucket turns into 3/4". This is the isolation return line, which is 3/4" coming out of the bucket, joining into a 1.5" line. With space considerations, I dropped the isolation line down. This is fine, as it's below the bottom of the buckets. It will have to go up and over the hump, but again the level of the bottom of the bucket comes into play and it's a different thing than taking away from the main water level.
You can also see from this how the back two buckets disconnect from the system, and this is proving to work well so far.
Under normal operation, the blue handled valves will be open. If I need to isolate a bucket or two, then I turn off the supply to the bucket, then close the blue handled valve and open the black valve on the return side, and then open the isolation supply. Voila, bucket isolated for whatever reason is necessary.
My stopping point for the day was the back two buckets fully plumbed for the isolation return. I also have the front right bucket partially plumbed. I have the valve and elbow plumbed, but need to plumb the second elbow, union, and connection to the back right bucket. The back right corner was the most complicated, so I needed to know where that was at before I could connect the front right bucket to that point. This is because I'm running the isolation return counter clockwise around the buckets, from front right -> back right -> back left -> front left -> out of the tent to isolation res. Kind of funny that I got the parts for all that just to avoid a little hump over the main return, and now I'm doing a drop. lol
Oh well, shit happens when you plumb.
Tomorrow evening I'm going to try to get the isolation return completed (really isn't much left to that, and the uniseal will be here for the res) as well as potentially get at least half of the main supply line plumbed.
I think the supply lines will go quicker since they're 3/4", which is good. I can cut as I go without having to measure, go out of the grow space to my shop, measure the pipe, cut the pipe, clean up the pipe, come back, install, and rinse repeat.
That should leave me another evening to finish the main supply, and do the isolation supply. With that in mind, I'm hoping that next weekend (probably Sunday) I can actually do leak tests and get the internals wet!
Now where I am undecided is on the supply lines, and where I want to connect them to the buckets. I know the location on the bucket, but I'm not sure if I want to come in from the top of the bucket, or from the side. The parts are the same, so not worried about that.
What I am concerned about is if I come in from the side, that's a little bit of weight on a 3/4" uniseal.
Now if I come in from the top, through the lid, I have a pipe in the way when I want to take the lid off. Not that I should need to take the lid off, but it could get tricky if I were to need to do so.
However, the top of the buckets could help support the weight, and there wouldn't be the stress on the uniseal. Also the uniseal at that point is more decoration than anything, and more to keep light out than water tight. Not that the side connection would be under water, but still.
Good news on the isolation bucket! It's height is just fine, and the water level will sit about 3" from the top of it while the main bucket is 1" below the net pot. cha-ching! Love it when a plan comes together.
Also, did I mention that the main res went from a 17gal tote to a 27gal one?
Reason is two fold:
a) the height worked out so I only needed a 4" external platform.
b) thank to mega crop, another 10gal of nutrients ain't shit.
One benefit with a little larger res will be more stable water temps. More water, takes more to increase the temp. The bad thing about all that is now it's sitting on a platform, and not directly on the basement floor. However with the room temp in the basement being 68*-70* tops, I think it should be just fine. I can also potentially do some things to act like a heat sink of sorts, so it shouldn't be bad to work with at all. First thing I would try is to take some aluminum sheeting, and bend it to where it sits on top of the riser, under the res, but comes around underneath the platform and contacts the floor. Floor makes aluminum cold, which then transfers to the res.
Neither here nor there, but I may be seeing light at the end of the tunnel!