Draining
No sewer cleanout
If you cannot find a cleanout, Phoenix suggests a plumber install one.
This is an independent referral guide. It connects homeowners with independent providers and may receive compensation. It is not a licensed contractor and it does not do the work.
Septic homes
For homes without a cleanout, such as homes on septic, clean de chlorinated water can go to the right of way only with a permit, under 50 gallons per minute and below 1 ppm chlorine.
Not allowed
Phoenix prohibits discharging backwash, saltwater pool water, or any discharge to an alley.
Permanent lines
Phoenix advises against installing the drain line as a permanent fixture.
Sources
Public pages, linked so you can read the source yourself. Rules change, so confirm the current version with the agency before you rely on it.
Ask about your Ahwatukee yard
Say the neighborhood or ZIP code, the yard size, and whether the lot slopes or backs onto open desert.