Backyard Drainage & Monsoon Prep — Don't Let One Storm Destroy Your Build
Phoenix gets less than 8 inches of rain a year — and most of it comes in 3–4 monsoon storms. A backyard that ignores drainage is one storm away from a flooded pool deck.
Why drainage is non-negotiable in Arizona
Our soil doesn't absorb water — it sheds it. When a monsoon storm dumps 1–2 inches in 30 minutes, every drop has to go somewhere. A properly designed backyard moves that water away from the house, away from the pool equipment, and away from your neighbors' lots. A poorly designed one floods a finished basement or a pool pad.
The drainage tools we actually use
- Channel drains across pool decks and patios — capture sheet flow before it pools.
- Atrium / area drains in low spots — picks up standing water in turf and planter beds.
- French drains buried along walls or grade transitions — moves subsurface water.
- Dry wells / drywells — absorb runoff on-site when there's no street outlet.
- Catch basins at down-spouts — converts roof runoff to controlled discharge.
- Grading and contouring — the cheapest, most effective tool: slope water away.
Pool decks need real drainage
A flat pool deck pools water — every time. We pitch decks ¼-inch per foot away from the pool toward channel drains, then run those drains to safe discharge points. Pavers with permeable joints help, but they don't replace channel drains in a monsoon downpour.
Equipment pads and electrical
Pool equipment and outdoor electrical do not survive sitting in 2 inches of standing water. We always elevate equipment pads 6–8 inches above grade and route runoff away from outlets, sub-panels, and heater intakes. This is one of the most common failures we see when we rescue projects.
Monsoon prep — what homeowners should do
- Take down cantilever umbrellas before storms hit.
- Clear channel drains, downspouts, and catch basins of debris each spring.
- Trim trees that overhang the pool — broken branches cause more damage than wind.
- Cover or secure loose patio furniture.
- Check pool pump shut-off if a flood event is imminent.
- After the storm: clean pool filter, balance chemistry, brush deck silt before it stains.
The fix when it wasn't done right the first time
If your existing backyard floods, we can usually retrofit drainage without redoing the deck. Channel drains can be saw-cut into existing pavers or decking. French drains can be trenched along problem walls. Grading can be corrected at edges. Worth a site visit before another monsoon season.
