Geysers are one of the most entertaining additions from the Chaos Cubed update, and they do a lot more than look cool. With the right setup, you can build natural elevators, Elytra launchers, and some genuinely nasty traps for unsuspecting friends. The key ingredient is the Potent Sulfur Block, a new block tied directly to the Minecraft Sulfur Caves biome. Get that sorted first, and the rest comes together fast.
What do you need to make a geyser in Minecraft?
There are two valid build methods, and neither requires rare materials beyond the Potent Sulfur Block itself. Here's everything you need before starting either approach:
The Magma Block method and the Lava Source method produce different geyser behaviors, which is worth understanding before you commit to a build. More on that below.
Potent Sulfur Block location
How to make a geyser using Magma blocks
This method produces a periodic geyser that erupts on a cycle rather than continuously. It takes a few extra steps, but the timed eruptions make it far better for traps and redstone contraptions.
- Dig a square pit at least 3 blocks deep, or build one up using solid blocks.
- Place a Magma Block at the very bottom of the pit.
- Set a Potent Sulfur Block directly on top of the Magma Block.
- Fill the entire pit with water using your buckets until it becomes a standing water source (not flowing water).
- The water will shift from blue to green, signaling acidic water consistent with Sulfur Cave pools.
- Wait for the eruption cycle to start. Your geyser is active.
How to make a geyser using a lava source
This second method skips the Magma Block entirely and produces a continuous geyser that never stops erupting. It's simpler to build and more reliable for elevator setups.
- Dig a pit 2 to 5 blocks deep.
- Place the Potent Sulfur Block at the center of the base layer.
- Pour lava directly beneath the Potent Sulfur Block using a lava bucket.
- Cover the lava on all four sides with solid blocks to prevent it from contacting the water above and turning to stone or obsidian.
- Fill the entire pit with water until every block is a source block.
- Keep the Potent Sulfur Block 1 to 4 blocks below the water surface for the geyser to function.
With lava underneath instead of a Magma Block, the geyser runs non-stop. This is the better choice for an Elytra launcher or a permanent elevator.
Lava method base setup
How does geyser height and timing work?
The water depth above the Potent Sulfur Block controls everything: eruption height, dormant duration, and how long each burst lasts. The formula is straightforward:
Geyser Height = 5 x Water Height (in blocks)
The maximum achievable height is 20 blocks, reached with 4 blocks of water above the Potent Sulfur Block. At that depth, you're also looking at dormant periods up to 60 seconds, so plan your trap or elevator timing accordingly.
One thing worth knowing: geyser particles pass straight through non-collidable blocks like copper grates and glass, but stop dead when a solid collidable block sits above them. You can use this to shape and redirect the eruption column without killing it.
Max 20-block eruption height
What can you build with geysers in Minecraft?
After testing these setups across different builds, a few applications stand out as genuinely useful rather than just decorative.
Elevators Build a glass tube with a water column inside, place a Potent Sulfur Block at the base, and wire a Dispenser with a lava bucket to a button using redstone. Press the button, lava fills the space under the sulfur block, and the geyser launches players or mobs upward. Unlike bubble columns, the launch is unpredictable in timing, which actually makes it more fun in multiplayer.
Elytra Launchers The same glass-and-lava framework works perfectly as an Elytra launch pad. The burst of force from the geyser opens your Elytra wings instantly on the way up, letting you transition straight into gliding without needing a high tower or fireworks.
Geyser Traps Camouflage a geyser under a floor or path and lure someone onto the trigger point. For extra cruelty, cap the eruption column with an obsidian box. The geyser launches the player up, they hit the obsidian ceiling, and they're stuck until you let them out. Geysers don't deal direct damage from the gas or water, but fall damage on the way down is very much your problem.
Decorative Builds For builders, a geyser inside a train engine or factory chimney structure sells the illusion of a working industrial setup. Pair it with copper grates at the top so the particles vent through naturally without being blocked.
For more ways to expand your base and automate resource production, the best Minecraft food farms guide covers setups that pair well with the kind of large-scale builds geysers complement.
For a full walkthrough on obtaining the Potent Sulfur Block itself, the Minecraft Potent Sulfur Block guide covers every method including crafting and cave looting. The rest of our Minecraft guides cover the full Chaos Cubed update if you want to get the most out of everything the new biome brings.