Is there a large amount of solids in the water?

Solids, including algae, dirt and debris can clog sewer lines and cause an overflow. Pretreatment, such as a filter or strainer, shall be used to remove solids prior to discharge.

Have copper algaecides been used to treat this pool/spa or is there potential for high concentrations of copper in the water?

Copper algaecides, copper ionizers and corrosion of copper pipes may elevate the level of copper in the water. The District's Local Discharge Limit for copper = 0.9 mg/L (ppm). High levels of copper can also cause staining of pool and spa fixtures. Copper test kits are available from local pool supply stores. If copper concentrations are above the Local Discharge Limit, the water must be pretreated prior to discharge. An inspector will contact you to discuss appropriate pretreatment and discharge options.

What is the pH of the water?

pH is a measure of the acidity or alkalinity of the water and is measured in units from 0 to 14. The District's Local Discharge Limit range for pH is from 5.5 to 11.5, however typical pool and spa water is between 7.2 to 7.6. Water with a pH below or equal to 5.5 or above or equal to 11.5 may not be discharged to the sewer. pH test kits are available from local pool supply stores. Pretreatment, such as chemical adjustment, shall be used to raise or lower pH to within the limit prior to discharge. An inspector will contact you to discuss appropriate pretreatment and discharge options.