The HydraTech portable purifier in Probably Stolen is a consumable hand tool that brings water up to Base Water quality, which community references put at around 98%. It is not a machine that turns any liquid into 100% Pure Water. Apply it to a water container, watch its remaining durability, and test the water afterwards. If you need a higher grade, identify the contamination that remains and use another treatment.
At a glance
| Type | Portable, consumable hand tool |
|---|---|
| Target grade | Base Water, around 98% (community references) |
| Pure Water? | Not on its own; needs further treatment |
| Wear | Consumes durability with use |
| Patch fix | Update 049 fixed failures to reach 98% |

What the HydraTech purifier is
Community item references describe it as a portable water purifier with a limited role in the water workflow. It is a hand tool, used directly on a container. That makes it different from a processing machine that runs overnight.
The developer's Update 049 patch notes call it the HydraTech Micro Purifier. Those notes confirm its link to 98% purity: they fixed a floating point bug where the purifier would sometimes fail to reach 98%. That fix is the clearest official statement of what the tool is for.
How to use it
Apply the purifier to the water container as the tool permits. You do not need to wait for an overnight cycle with the hand tool. Check the tool's remaining durability after each use, since it wears down.
Then test the water. Do not label the container until you have a reading. A test tells you whether you reached Base Water or whether something still needs fixing.
Base Water versus Pure Water
Base Water and Pure Water are different quality grades. The portable purifier targets the Base Water threshold. Reaching Pure Water needs further treatment chosen for the contamination that is left.
This is why guides warn against treating every purifier as a path to 100% purity. If your goal is Pure Water, plan a treatment sequence rather than relying on one tool. Our water guide explains how to choose treatments.
Durability and cost
The purifier consumes durability as you use it. Community references describe this consumption, but the exact arithmetic may depend on your build. Check the tool in your own game before you plan a large batch.
Durability is a real cost. When you price a bottle of water, include the share of the tool you used, along with the container and any other treatments. Revenue from Base Water is not profit until those inputs are counted.
The 98% bug fix
Before Update 049, the purifier could sometimes stop just short of 98% because of a floating point precision error. The developer fixed it on September 14 and improved the precision of other liquid calculations at the same time. If you remember the tool failing in the playtest, that is likely why.
Older videos may show the pre-fix behaviour. When a guide's result does not match yours, check which build it was recorded on.
When to use it
The portable purifier is handy when you need to bring water up to Base Water without waiting a night. It suits small batches and quick fixes at the counter. It also fits early water businesses before you own larger equipment.
For higher grades or larger volumes, combine it with other treatment. Filters, UV equipment and tablets each target different problems. Choose by what your test shows.
Common mistakes
The first mistake is skipping the test. A purifier used on water with a different problem may not help at all. Measure before and after.
The second is confusing the portable tool with a separate processing machine. They are different devices with different workflows. The third is labeling water as Pure Water because a purifier was used, which risks angry customers.
Labeling and customers
Label by measured quality. Customers can confront you about mislabeled water. The screenshot on this page shows one such complaint.
Update 049 fixed a case where customers complained about the label on an empty container. Real mislabeling remains your liability, as the developer's Water Merchant description puts it.
Water Merchant and the purifier
Community scenario data says the Water Merchant start begins with testing and purification equipment. That makes it the natural start for learning tools like this one. The developer recommends Apprentice for a first run, then branching into a specialty.
Once you know which grade each customer wants, the purifier becomes one step in a larger chain. See the tier list for start comparisons.
How it fits a water business
In a water business, the purifier is one tool in a chain. Water comes from rations, bottles, taps or a Moisture Farm. Testing tells you what is wrong, and the purifier fixes the problems that stand between you and Base Water.
After that, your customers decide what grade you need. Some will be happy with Base Water, others want more. Our water guide explains the whole chain.
Common questions
Does the HydraTech purifier make Pure Water? Not on its own. It targets Base Water at around 98%, and Pure Water needs further treatment.
Do I need to wait overnight? No. It is a hand tool used directly on a container, unlike overnight machines.
Why did my purifier stop below 98%? Before Update 049 a precision bug could cause that. The developer fixed it on September 14.
Does it wear out? Yes. It consumes durability with use, so check what remains after each batch.
Quick reference
Use the HydraTech purifier on a water container and do not wait overnight. Expect Base Water at around 98%, not Pure Water. Watch durability.
Test the result, and add other treatments only if you need a higher grade. Label honestly and price in the tool wear. Recheck these details after the 1.0 release on October 28.
Community videos
We summarise these videos from their titles and descriptions only. They play here on this page.
Sources and further reading
- Developer patch notes: Update 049
- Portable water purifier (community)
- Water Merchant guide (community)