How to Make a Water Lift in Minecraft (Soul Sand)
A water lift is one block of soul sand under a shaft of water source blocks. Here is how to build one, why flowing water breaks it, and the kelp shortcut.

Put a block of soul sand at the bottom of a sealed 1×1 shaft, then fill every block of that shaft with water source blocks. The soul sand turns the column into an upward bubble column that pushes you to the top, and you can breathe the whole way. If the bubbles do not appear, the shaft contains flowing water rather than sources.
A water lift in Minecraft is the cheapest vertical transport in the game. There is no redstone, no pistons, and nothing to break. One block of soul sand and a bucket do the entire job.
The part that trips people up is the water. Bubble columns propagate only through water source blocks and stop at the first block of flowing water, so pouring one bucket down a tall shaft does not work. Almost every failed water lift in Minecraft comes down to that same mistake.
What you need before you start
Soul sand is the only mandatory ingredient and it comes from the Nether. It is most abundant in soul sand valleys, and it also generates below Y=34 in the Nether wastes along the shores of lava seas, in Nether fortress wart rooms, and in bastion remnants. Any tool mines it, though a shovel is quickest. The one Overworld source is ancient cities.
You will also want a water bucket, a stack of any solid block to wall the shaft in, and either a lot of bucket trips or a few pieces of kelp. Glass panes, iron bars or fences are useful for the entrance.
How to make a water lift in Minecraft, step by step
1. Dig or build a 1×1 shaft the full height you want to travel, and make sure every side is walled in with solid blocks. Water leaking out sideways is the second most common reason a lift fails.
2. Leave the soul sand out for now. You cannot swim down through a finished bubble column, so placing it first traps you out of your own shaft while you are still filling it.
3. Starting at the bottom of the shaft and working upward, place a water source block at every single level. Each one must be a full source, not the flowing water that spreads from the level above it.
4. Once the column is full to the top, swim back down and put the soul sand in at the floor. The bubble column forms 20 game ticks — about a second — after the soul sand goes in, and it forms in every source block above it at once.
5. Cut a doorway. Replace the bottom two blocks of two adjacent sides with glass panes, iron bars or fences. That makes a diagonal walk-in entrance that holds the water in but lets you step through.
Step in and you rise immediately. In Java Edition a bubble column carries you at roughly 11 blocks per second; in Bedrock Edition it is closer to 14. On a tall lift you accelerate as you go and can be launched a few blocks clear of the water at the top, so leave headroom.
The faster way to fill the column
Placing a source block at every level by hand is slow on a lift more than a few blocks tall. Kelp solves it. Kelp placed in downward-flowing water becomes waterlogged and converts that flowing block into a source.
So: pour a single bucket of water in from the top, then swim up the shaft placing kelp on each block as you go until you reach the top. The whole column is now sources. Swim back down, break the bottom kelp block, and put the soul sand in its place.
Two things to know. Kelp can only be placed in a source block or in downward-flowing water, never in horizontally flowing water. And breaking one piece of a kelp stalk destroys every kelp block above it, which is exactly what you want when you clear the shaft afterwards, but it will also undo your work if you break the wrong one early.
What a water lift does not do
It does not take you down. That is a magma block, which creates a whirlpool bubble column pulling entities downward instead. It is slower than an upward lift — roughly 4.9 blocks per second in Java, 6 in Bedrock — and the magma block burns you at the bottom unless you are sneaking, have Fire Resistance, or have parked a boat on it. For descending, an ordinary drop shaft with two blocks of water at the bottom is faster and safer.
It also does not tolerate waterlogged blocks inside the shaft. A bubble column stops at any flowing water or waterlogged block, so the signs, slabs and stairs people use to hold water in a classic elevator will break this one. Keep the interior of the shaft clear.
And it does not drown you. Players and air-breathing mobs replenish air inside a bubble column at the same rate as they would standing in open air. Water-breathing mobs are the opposite case and avoid bubble columns, because being trapped in one suffocates them.
Common questions
How tall can a water lift in Minecraft be? There is no built-in limit. The column runs until it hits the water surface or an obstructing block, so build height is your only ceiling.
Do I have to hold jump or swim? No. The soul sand design is passive — you step into the column and it carries you. The sign-based water elevators you may have seen in older tutorials are the ones that need you to swim.
Can I make one 2 blocks wide? Not as a single column. One soul sand block only affects the sources directly above it, so a wider shaft is just several 1×1 lifts side by side. The usual trick is to put an up shaft and a down shaft at diagonal corners of a 2×2 space.
If the bubbles don't appear
Work down this list in order. Check that the block under the water is soul sand and not soul soil, which looks similar and does nothing here. Then check the shaft for flowing water by looking for the animated downward stream — one missed level halts the column at that point, and everything above it stays still.
Next, check for a waterlogged block you forgot about: a ladder, sign, slab or lantern inside the shaft will stop propagation just as flowing water does. Finally, make sure nothing is pushing into the shaft. A piston destroys a bubble column outright, and a block placed into a source removes the source with it.

By Daniel Shuttleworth

