I'm getting ready to install a sprinkling system, but I left my plans at home. I need to go to the hardware store after work. Does a Febco pressure vacuum breaker have male threads? I assume if so, you just use a male to slip PVC fitting. Anyone with experience with these?
Open the door by LIM CHANG JUNG Search '?????' or Open the door
There are a few major problems with this suggestion, though it is a creative one: 1. Radiation is not the same thing as light. It cannot be bounced away with a mirror or reflective paint like light can. UV light in particular can be filtered through glass, but radiation itself can't. 2. Supposing this were possible, UV rays would not merely go back into space if we bounced them off our roofs. They would interact with the o-zone and with other things in our environment. 3. There is not enough surface area on all of our rooftops to bounce away the majority of the UV rays that are currently penetrating our planet's atmosphere, even if this suggestion were possible.
