ddinnsen
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I'm currently irrigating with a web of hoses with anti-siphon bibs and Melnor 4-zone timers, but I'd like to get a "real" irrigation system. I have no issues with backflow now that I have noticed. I'm on a 15 gpm, 55 PSI well, but I use most of it for my geothermal heat pumps leaving about 7 GPM for irrigation. I also have lots of sand in the water. I initially installed the irrigation line after a 1" Lakos spin-down filter, but it clogged with sand before I could finish watering the yard. Now it is after the filter which means full sand, but it works great. I'm concerned that a double check valve will have problems with sand and also reduce pressure. I'm confident that if I added a strainer, it would clog too fast. I do not have any puddling at the heads and I don't use nasty chemicals on my lawn., but I do have sprinkler heads higher than my the tap for this 3/4" circuit. Recommendations?