I recently took on a new lawn care account, and they have an above ground 2 zone system with a timer connected straight to the faucet that came with the house they just moved into. The heads are just your typical above ground brass impact heads. The lines that feed them are Rain bird UV-resistant tubing I believe. The system also has a few 180 degree micro heads fed by what I believe is 1/4" line in the their flower bed. I'm not an irrigation guy obviously, but I told the customers that I would either winterize the the system or have it winterized if it needed it. Does a generic above ground system like this need to be winterized? It looks like this was a kit of some sort.