A potion reservoir is a device which can be used to automatically consume doses of a potion. When a potion is used on an active reservoir, it will fill up and automatically consume the potion when the potion's effects run out. However, the reservoir cannot hold certain combination potions, regardless of timers.

Click on a potion reservoir (inactive) to activate it. Only one potion reservoir may be active at a time. Potions which are not on a timer cannot be added (e.g., super restores). To fill the potion reservoir, use a potion on an activated potion reservoir. Each potion reservoir can hold up to a 6 doses and cannot be refilled (or "topped off").

Potion reservoirs are not widely used due to the extra time and cost of making them for no measurable benefit, as a player in combat still typically has to constantly monitor the combat scenario they are in.

Another problem with the reservoir is that only one can be activated and used at a time. For example, a player could have a reservoir for their overload potion, but not one for their prayer renewal.

Despite this, the potion reservoir can be useful for killing dragons such as the King Black Dragon if you allow it to hold any kind of antifire, allowing for safer AFKing. The few thousand coins spent on the reservoir may be worth it compared to the cost of death.

These can also be useful for avoiding early potion renewal and maximising the time per potion, especially with expensive time-based potions such as weapon poison++ and aggression potions.


Potion reservoir Potion reservoir
Invention-Make-X GE icon
150 XP--
Invention Invention level112
Blueprint (Invention) Research: Potion reservoir
P2P icon Members onlyYes
Potion flaskPotion flask16,5606,560
Simple partsSimple parts5N/A-
Clear partsClear parts5N/A-
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