The phrase "down phase" refers to a time period or situation when things are not going well or are getting worse. It implies a decline or decrease in various aspects of life or a specific situation. Full definition
He focuses on the current and future financial aspects of the accumulation and draw - down phases of the retirement community of both countries. (indexologyblog.com)
The first phase is the let down phase, this mimics a baby's fast sucks they do at the beginning of a feed to get your milk flowing. (naptimenatter.com)
At the beginning of your pumping session you should start in a let - down phase if your pump has one. (lansinoh.com)