I designed a system w/4" PVC pipe that would allow me to leave for a few days with little worry.
This is a shallow water culture using the Autopot Smart Valve for control.
I have a res that gravity feeds the Smart Valve, and all I need to do is keep the nute res filled.
The res has a bubbler stone, and the tube itself has a 48" bubbler line.
The Smart Valve allows nutes in at a depth of 1" and stops. It will not refill the tube until the current charge is used up.
This was built to fit my cab flower chamber, but it can be made to any size at all with the use of just one Smart Valve. The sytem doesn't care if there are 5 or 50 plants, it only needs a sufficient sized res.
