Okla. Admin. Code § 35:30-29-33
Current through Vol. 42, No. 8, January 2, 2025
Any fertilizer sprinkler irrigation system shall employ a method to prevent the possible backflow of material. The methods shall include, but not be limited to, the employment of a check valve or similar in-line device, or other positive mechanical method, designed to ensure that backflow shall not occur.
Okla. Admin. Code § 35:30-29-33