A ___ is used to allow air in and out of a reservoir as hydr… Post author By Anonymous Post date January 17, 2025 Related Posts:A ___ is used to allow air in and out of a reservoir…A ___ is used to allow air in and out of a reservoir…A 42- year-old patient has bilateral hydronephrosis… ← A nurse is scheduling a client’s medication. The client is o… → The nurse working in a peri-natal clinic is caring for pregn…