Wow BiteSize ,There's nothing Bitesized about your plan ! , Thats a lot of water, Your going to have your hands full thats for sure.
IMO, I would go with the separate reservoirs, With a central reservoir, You got even more water to mess around with and put nutes in, If anything I would think it...
Lol, Grow like weeds, They are weeds, Your Ph problem should calm down in a few days unless there is something else wrong which I doubt, You did your homework from what I can tell.
When ever I start a new grow it takes a few days for the ph levels to set in. I just have to keep a eye on it.
Did you rinse the rockwool and hydroton with phed water before you put it in the system? That might have something to do with the cloudy water and your ph problem.
Here Mr Rose , need to check this out DIY Cooler Reservoir
I like your idea but thats a lot of water to cool with a heater coil , Not saying that it wouldn't work, but kind of expensive.
I went to walmart and bought the Igloo Island breeze cooler, nice flat lid pretty much, Cut the holes for...
Gadadriel go here for the drip question Deep Water Culture Tutorial, SH Kit & DIY
Its alot for reading but should answer your question about it.
The air pump should be fine.
The test kit should work if it reads in the range of 5.5 to 6.5
Re: brown spots on bottom of res.
Medicatedman, Deos kind of sound like your problem was with light getting in the res. but I would still keep a eye open on the water temps also.
I grow in DWC and down here where I live I have a big problem with water temps and had to use a 42 qt cooler to...
Re: brown spots on bottom of res.
What kind of nutes are you useing, I have seen it but I use Floranova nutes, And it's brown going in.
What's the temp in the res, If it's high it could be algea growing.
Could also be leaking light into the res.