Answer
A sterile medium is connected with the growth chamber which has an overflow system. Sterile medium is entered in growth chamber periodically to keep the population of microbes in check.
Work Step by Step
As above
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.