Gramaisc
Forum O. G.
Excellent - we had a battery-powered timer for the greenhouse irrigation, but it just wasn't reliable enough - so I made a mains powered one, with an electronic plug-in timer, so we could time it to single minutes of 'on' time, this drives a washing machine filling valve, so that we had a lot more operating power for the valve - it's worked 100% reliably for twenty years.There is water in the greenhouse, the polypipe has come up from underneath, a copper run attaches to it that is controlled by a solenoid valve (itself controlled by a raspberry pi) with a dripper kit attached for plants on the shelving, and a soaker hose for those in the ground. There is pipe in place for the other greenhouse, which I am told is getting moved this winter.
There were various applicators, drip, flood and spray. I considered running another timer, set thirty seconds ahead and operating a buzzer, so you had time to get out before the spray commenced...