Look here for answers to frequently asked questions about how to select valve boxes for your lawn irrigation system. Should I install the zone valves and valve box before or after I dig the trenches? Digging the trenches is one of the first steps in installing a sprinkler system. Once this step is taken care of, you’ll put in the pipes and connect the pipes to the water source. After this is done, you’ll install the valve box. I’m looking at 2 different valve boxes; one will be a tight fit for the valves and one has room to spare. Which will be better in the long run? It’s always a good idea to size up a little with your irrigation boxes, particularly if the other option is for the valves to fit too tightly. You may need to replace some of the valves from time to time as they wear out or if they break, and having a little extra room in the box will make this job easier over the years. The cost difference between a medium and a large sized valve box is minimal ($10 or less), so it is more a matter of digging a slightly larger hole now so that you have more room to tweak the valves over the years as you maintain your sprinkler system. What shape of box works best for home irrigation systems? Landscapers and homeowners often prefer rectangular valve boxes . Rectangular boxes are a little roomier than round boxes and they blend in well with a lawn.
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