Aerobic System - How to lower sprinkler head below pipe level?

[CMayo]

I need to replace a sprinkler head (Rain Bird Maxi-Paw or equivalent) on my aerobic system, and have found that the outflow piping was laid too shallow to mount the pop-up head flush with the ground. I know zip about septic systems, plumbing and irrigation... any reason I shouldn't put a downward-facing tee on the line, then angle it off to one side and mount the head a few inches below the pipe (see attachment)?

 

[FishScreener]

A series of four ninety degree fittings, was traditional. Now a three foot long flex line. Any good turf and sprinkler supply store will have them.

 

[Mr_David]

Like fish said. threaded 90's.
you don't need to tape them.

 

[CMayo]

Thanks guys, I went with the flexible tubing and it worked great!