1.)How large of plants will the fence post system support. I plan on vegging for 2 months then flower will it be able to support the roots of such large plants with support of course?
4.) Lastly do you use tap water or do u run it through a reverse osmo filter first?
I can tell you this much....
Vegging too long with this system caused me headaches...
I had some plants started from seed. I vegged them way too long.
They got huge! The 2" net pot was tipping in the vegg'r
I started adding rocks to the top of my tub to hold them in place.
The roots all grew together into a huge mat in the bottom of the tub... I thought maybe I would just let them finish in the vegg'r. The the little rocks that held them at 4' tall would not hold them at 5' tall... I needed boulders, but none would fit.
I had to cut the roots...
A couple of days ago, I cut em. I left as much of the root length as I could. They started looking bad... I put the water timer on for more time watering. It took a few days but they look better now. I have no idea if I stressed them to Hermie... Time will tell I guess.
I will never let them veg too long again... Never.
The tap vs RO H20. Depends on your local water source. My water has a PPM of 550 out of the tap. I had to go with RO. Check your water.