How much seeding is needed? Nortek Support June 21, 2019 21:27 Updated Follow We recommend having a seeding concentration of 20–30 mg/L. Related articles How do I enhance Correlation and SNR? How do you figure out the time to assign to Vector velocity samples? How much current does my instrument draw? How do I carry out a compass calibration? Comments 0 comments Please sign in to leave a comment.