Water filtration system

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The water filtration system is a buildable hotspot in Het's Oasis. It can be built by constructing the pile of junk in the north-eastern corner of Het's Oasis with level 20 Construction.

The water filtration system can be checked for a reward. A new item is added once every 6 to 30 hours.[1] It does not need to be checked regularly, however, as the items accumulate in the system, up to a maximum of 20 items.[1]

Constructing it requires the following items and awards 9,900 Construction experience.

The collection interface

Using a bucket of water on the filtration system completes the Primitive Technology achievement.

Obtaining a pointy tooth is required for completion of the Tooth Fairy achievement.

Rewards[edit | edit source]

Selecting the "Clean out" option will open a collection interface. An item will be added once every 6 to 30 hours from the following rewards. It has a maximum of 20 items/spaces.[1] On average, players can expect roughly 1 item every 24 hours (you are guaranteed 1 item after 30 hours).

Gems[edit | edit source]

Elder Troves[edit | edit source]

Het's Oasis[edit | edit source]

Miscellaneous[edit | edit source]

Achievements[edit | edit source]

Update history[edit | edit source]

This information has been compiled as part of the update history project. Some updates may not be included - see here for how to help out!

References[edit | edit source]

  1. ^ a b c RuneScape. Het's Oasis Introduction & Let's Play. 11 January 2022. "You'll get a piece of loot added from anywhere between 6 hours to 30 hours, and it has 20 spaces."