Hi... I'm looking for some help on putting in a basic drip irrigation system for my raised bed garden. It will be attached to the house hose bib and the garden is about 35 feet away. I was going to use the TORO blue stripe system with 1/2" tubing to run to the beds and then 1/4" emitter tube over the beds. This would be something I'd bring in over the winter. My only concern is that the beds are up a hill a little bit and are maybe 6" above the grade of the hose bib. I read that this is a problem with the operation of the backflow prevention device... any help or information would be appreciated.