Pool Draining
Draining and backwashing are essential parts of keeping your pool summer ready, but how you discharge that water is also one of the most important ways you can help protect the environment and respect your neighbors’ properties. Pool water should never be discharged to the street. It is not only a nuisance to neighbors, but it is a violation of local, state and federal regulations.
Storm drains are intended for flood prevention, not wastewater disposal. When pool water, which is already high in salt or chemicals, is discharged to the street, it flows untreated into the city’s flood control system, picking up oil and debris before coming to rest in retention basins or eventually making its way to the Salt River where it can damage or kill aquatic life. Water left in streets also damages the pavement over time, leading to costly, burdensome street repairs.
- What can I do with discharged pool water?
- Option 1: Irrigate Your Landscape
Draining pool water to your desert landscape or lawn is a great option for disposing of pool water. Allowing the water to percolate into the ground lets you reuse the water you already paid for and conserve the water you would otherwise need for irrigation.
What to watch out for:
- Pool water contains more salt and chlorine than tap water, so be sure to use caution when applying pool water on certain plants.
- For best results, wait three to seven days after treatments before draining to allow chlorine to dissipate. The pH should be in the 7-8 range.
- Move the hose frequently to avoid creating areas of stagnant water that can attract mosquitoes.
- Water must be contained on your own yard. Do not allow the water to flow into your neighbor’s property or the storm drain.
If you have too much water for your landscape, you can drain or backwash the pool into your home’s sanitary sewer cleanout.
- Locate your sanitary sewer cleanout and remove the cap.
- If you are completely draining the pool, shut off the power to the filtration system and turn off the automatic water fill valve if you have one.
- Run the drainage hose from a submersible pump in the pool to the cleanout pipe. Be sure to secure the hose so it won’t pop out.
- Turn on the pump and immediately check to make sure no water is backing up in the house (check the shower and tub first). If the water backs up, turn off the pump immediately. You may have a blockage or have the pump flow rate set too high. Rule of thumb is no more than 50 gallons per minute.
- Where can I find the sewer clean out?
A sewer cleanout is two four-inch caps about a foot apart with a square nut on top. It is part of the private plumbing associated with the property and may be located in either the front or backyard, usually near a bathroom. Homes older than 20 years may not have a sewer cleanout unless the homeowner had one installed.
Sewer cleanouts may be difficult to find. This is generally caused by landscape changes over time. Scottsdale does not have records showing where the sewer cleanout is located on private property. If uncertain, please contact a licensed plumbing contractor to locate or install a cleanout.
- Refilling your pool in the winter?
Unlike water, sewer use is not metered. Instead, sewer rates are updated annually in July based on your average water use in December, January and February. If you are refilling your pool during these months, your water use may not be a true reflection of the average amount of water discharged to the city’s sewer system. To request an adjustment to your sewer volumetric charges, you must submit a Sewer Charge Adjustment Request by Aug. 31.
- Did You Know?
Pool water drained to the city sewer system is treated and recycled for future beneficial use!
Scottsdale Water operates one of the most innovative advanced water treatment systems in the nation. Annually, we recycle over 2.5 billion gallons of water for turf irrigation and recharge over 1.3 billion gallons of highly treated recycled water to Scottsdale’s aquifer, which ultimately helps safeguard the long-term viability of our groundwater supplies.
Salt-tolerant plants
The following list of plants and trees commonly found in Scottsdale landscapes is meant to be used as a guide for identifying plants that can and cannot be safely irrigated with pool water.