finnaly after years of planning my green house is running if someone will tell me how to post pics i will be happy to share them all things are great ph is 8.1 to 8.4 orp is above 400 and temp is constant at 80 due to a 2.5 ton air handler polyp exstension is unreal so far i have 4 vats of 250gal with more on the way (fiberglass with white gel coat) later coastal