^ ^ ^ Great choice OP. That is LIFETIME solution that you'll never have to worry about.
Bury it DEEP and don't forget to backfill some dirt, then add the yellow copper tracer wire. That way the buried plastic can be located later.
Trench is dug to 18"......depending how tall the riser ends up being, I might need to trim out a few more inches
It is going from the meter right down the foundation to the patio
