Finalising new room set up / help advise needed

[Hesketh]

Hi Lads, not sure if this will work... so I'm looking for some input. First up, this idea has come about due to some free materials landing at my feet. So - on a job I'm working at, there are 4meter lengths of 8 inch ( yes 200mm ) piping ready to be skipped. So this got me thinking that maybe I can use them in a new automated system for my grow room. I was thinking that I could suspend the pipe a few foot off theground with a small incline, at the lowest point place a nutrient tank, from tank pump feed to one end of the pipe (highest point ) let it feed down the pipe and back into tank. cut 4inch net pots in a row evenly spaced, lay rockwool slaps on inside for growing medium....recirulating system, not sure if I could just set pump to run every few hours or consistently?
Or maybe run to waste will work better for my needs. I can't really have a pump running all night long.
As you can tell, it's a idea that needs work, any thoughts on how to make this a workable idea are welcome

I'v pics of what I have and an idea of what I can do... pics coming up

[Hesketh]

I've now got this piping and a low profile tank so the system can stay as low to the ground as poss.

What are people's thoughts of rockwool slabs inside this piping and run to waste ?

Nft won't work if it has to recirculate consistently due to the pumps running during the night time / ph ec fluctuations.

[Hesketh]

[Hesketh]

[Hesketh]

[Hesketh]

Low profile tank in last pic