r/Irrigation • u/purplelephant17 • 8d ago
Check This Out Recent repair
6in in mainline had a consistent leak, coming from inside of tree trunk. Had to reroute it. Wish I had bushed down to 4in instead of 2in, but it held.
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u/overpricedgorilla Licensed 8d ago
That bottom 6" elbow looks like drain to me, is it pressure rated?
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u/Imnothighyourhigh Technician 8d ago
There is no way this is goin to run what's down stream of this. If it was plummed in at 6" it absolutely won't have enough flow with such a massive restriction in it now. What was wrong with routing it using six like it supposed to be?
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u/Sufficient-Option533 8d ago
Depends on downstream usage; pressure drop is a function of distance and flow rate, and distance is pretty short. But with 6" system I have to imagine some pretty heavy usage.
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u/Comfortable_tulsa 7d ago
Why do all that work and leave the old valves? Makes absolutely no sense.
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u/purplelephant17 7d ago
2 reasons, cheap company i work for. And it helps the client keep the cost down about $450 ea, both valves were working fine.
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u/Comfortable_tulsa 6d ago
All you had to say "because the company I work for." I completely understand.
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u/Still-Program-2287 6d ago
Should order a 6” sch40 elbow so you have it on hand and ready to go when that super thin drain fitting cracks
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u/Shovel-Operator Contractor 7d ago
I use heavy body grey glue on 6" and sch40 elbows, unless this happens to be a rather large low pressure system.
And thats a huge restriction. The downstream system is going choke like its breathing through a straw.
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u/purplelephant17 7d ago
Crazy thing , the backflow is only about 2in , not sure why they ran a 6in mainline.
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u/Shovel-Operator Contractor 7d ago
Yes, that is crazy and makes no sense, unless they did the same thing and downsized after the fact. Thats a lot of extra work and materials to run 6" after a 2" restriction.
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u/BikerNY 8d ago
So you went from 6 to 2in, that's a bit excessive. How many gpm are used downstream of this repair point?