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Thumb of Michigan | You might need to check your sprinklers, themselves. IF the pass through is only say equivalent to 1/2" line, then changing your plumbing up stream wouldn't make much or no difference. And only 2 sprinklers in tandem will work.
Now, if you had a 1" supple line going into a coupling with 4 outlets, then you ran a 3/4" hose off each outlet to first sprinkler and then a 5/8" or 1/2" hose to second inline sprinkler. With this you could run 8 sprinklers IF your 1" line wasn't too long (friction loss).
Food for thought, a 3/4" ID pipe will handle roughly more than twice the volume of water compared to 1/2" and a 1" will more than double the volume of a 3/4" pipe. So, if the pass-through part of your sprinklers isn't big enough, that's your bottleneck. A 2" pipe will not fix your problem. A 1/2" pipe (or pass through on a sprinkler) has about 8 gpm at 70 psi. If each sprinkler head puts out 4 gpm, you're limit is 2 heads, even if being fed by a 3/4" line (20+ gpm @ 70 psi) or a 1" line (40+ gpm @ 70 psi).
Clear as mud? | |
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Homeowner irrigation
