I just installed a NDS Pop-up Emitter drain. I have draining stone under the elbow and I drilled small holes in the elbow. I believe I have this setup right, but I haven’t seen it actually pop up yet during rainfall.
I’m confused. Does it only pop up when there’s a heavy rain?
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Get the hose out and point it at the roof.
It should let the water out as soon as the pipe fills.