Unlike those two quests, you cannot access Reactor Coolant until after you complete all of the main Brotherhood quests. Go to the power armor bay in the Prydwen and talk to Proctor Ingram.

This quest is is given by Proctor Ingram after completing Tour of Duty. You can repeat this mission as many times as you like. Your goal is to bring back as many Reactor Coolants as you can and ...

The dedicated Fallout 4 community already ... after the arrival of the Prydwen. Talk to Proctor Ingram and accept her sidequest to collect Reactor Coolant. Proctor Ingram is the woman in a Power ...

If instead you needed help with anything else regarding Fallout 4 ... Reactor Chamber. The chamber will expose you to a hefty amount of radiation, so hopefully you came prepared. If not, Proctor ...

Moreover, you can now help out Proctor Ingram on the Prydwen with the Reactor Coolant quest.

With the help of our Fallout 4 Brotherhood ... reach the Reactor Level, proceed to the reactor chamber, take the Beryllium Agitator, remove Reactor Level security. Speak to Proctor Ingram and ...