Probably Stolen water purification guide: Pure Water

Water Purification Basics: What Actually Matters

A full jug of water is only valuable if it meets your customer’s requirements. This Probably Stolen water purification guide explains how to reach High-Quality and Pure Water without wasting filters, tablets, or power. The key to this Probably Stolen water purification guide is simple: match treatment to the remaining contaminants, then check your machine’s purity limit.

Official screenshot · Source: Steam store

For Pure Water, use a Water Purifier with at least 100% Quality and confirm that its Max Purity tooltip reads 99.9% or higher. Performance makes purification faster; Quality determines how clean the finished water can become.

This guide reflects the reference material available on November 1, 2026. Some community findings differ across builds, especially for plants and Moisture Farms, so your current item descriptions and machine tooltips should take priority.

Understand the six water grades

Water quality is a numerical threshold, not a judgment based on appearance. Ghostwater can look deceptively clean, while a bottle labeled Basewater might contain something worse.

Use Water Testing Strips to check the percentage. Drag a strip into the filled container to test it. An AquaScan provides a contaminant breakdown, making it more useful when purity stops improving.

The first practical lesson in this Probably Stolen water purification guide is to test purchased supplies rather than trust their labels. Community reports describe mislabeled merchant stock, and buying a large contaminated bottle can erase the savings you expected.

Get the Right Equipment Before Processing Water

If your starting setup does not already provide Water Trading, unlock it through Wild’s Network → Water → Water Trading. The reported unlock cost is 300 favor.

The starter kit includes testing strips, purification tablets, a Water Pitcher, a Water Filter, a manual, a water sign, and a partially used HydraTech Micro Water Purifier. It does not include the larger Water Purifier machine.

Look for that machine through Doc Jackson or the Retired Water Merchant. The merchant’s reported Wednesday visits begin on Day 3, followed by Days 10, 17, and 24. Actual purchase prices can differ from an item’s base value.

Know what each purification tool removes

Do not confuse the handheld HydraTech device with the powered Water Purifier. The handheld item is useful for preparing contaminated water, but the larger machine is the straightforward route to repeatable Pure Water production.

Community testing also reports that purification tablets tackle chemicals before microbes. Consequently, a tablet used on chemically contaminated water may not leave enough treatment capacity to clear every microorganism.

For additional player-tested setups, see Owlie’s Steam Community water-trading guide. Its author flags several older Moisture Farm recommendations as outdated, so read the update notes before copying a build.

How to Make High-Quality Water Efficiently

For early trading, 99% High-Quality water is a more practical target than immediately chasing Pure Water. You can establish clean-water sales first, then invest in modules once your supply chain works.

This Probably Stolen water purification guide recommends choosing between two workflows: quick finishing for suitable Basewater, or machine-assisted treatment for Rustwater.

Method 1: Treat purchased Basewater with UV and filtration

The supplied video demonstrates a simple combination on merchant-bought Basewater:

1. Check the starting water with a testing strip or AquaScan.
2. Use a UV Lamp to remove microbes.
3. Install a usable filter in the Water Pitcher.
4. Pour the treated water through the pitcher.
5. Transfer it into a storage container and test again.

This can reach High-Quality when the water’s remaining contaminants are compatible with those tools.

However, not all Basewater has the same composition. Water you produced yourself might retain chemicals or heavy metals that UV and pitcher filtration cannot remove. Repeating those treatments will not solve that problem.

Method 2: Process Rustwater with tablets and a purifier

Rustwater requires more preparation, especially in larger containers. Community reports provide the following starting workflow—not a guaranteed recipe for every batch.

Player experience: One community test brought a pretreated 6-liter Rustwater batch to 99% after three nights in an unmodified purifier. Smaller batches and different pretreatment methods can finish sooner.

Filtering before machine treatment can shorten the wait, but it spends filter durability earlier. Filtering afterward lets the machine do more initial work. Neither order is automatically best: choose based on whether filters or processing time are your current bottleneck.

Keep your starting jug and at least one spare filter. Selling your reusable processing container for quick credits can make the next batch unnecessarily difficult.

How to Make Pure Water With the Water Purifier

The central upgrade in this Probably Stolen water purification guide is Quality, not Performance. A fast purifier with a 99% cap still produces High-Quality water, no matter how long you leave it running.

Configure the machine correctly

Follow this sequence:

1. Supply power. The reported unmodified consumption is four energy units per processing night.
2. Insert a filled container. Starting with High-Quality water reduces the remaining purification work.
3. Install Quality-boosting modules. Reach at least 100% Quality.
4. Read Max Purity. Confirm a ceiling of at least 99.9%.
5. Allow processing cycles to complete. Check progress rather than assuming one night is enough.
6. Test the output. Verify the actual water reaches the Pure Water threshold.

Community reports indicate that expansion kits can open additional module space, with the supplied video demonstrating up to two expansions. It also shows Q/E for rotation and right-click for flipping modules.

How long does Pure Water take?

There is no reliable universal timer because starting purity, water volume, and machine Performance all affect the result.

Player experience: A community test used a purifier with 103% Quality and 28% Performance to turn a 6-liter jug of 99% water into 99.9% Pure Water in one night. Treat that as a demonstrated setup, not a promise for every machine.

Check both Max Purity and Contaminant Removed (Last Night). Zero removal can mean a finished batch, but first rule out missing power or another operating problem.

For this Probably Stolen water purification guide, the completion check is the tested water percentage—not elapsed nights alone.

Is a Moisture Farm another option?

Yes. The supplied video reports High-Quality production at 100% Quality and Pure Water at 150% Quality.

However, community reports warn that release-version Moisture Farms received substantial reductions in output and efficiency. Inspect the displayed daily production, water grade, and power demand before buying one. A farm generates new water; it does not replace a purifier’s role in upgrading existing contaminated stock.

Fix Stalled Purity and Protect Your Profits

When water stops improving, diagnose the reason before spending more supplies. This Probably Stolen water purification guide uses three checks: filter condition, remaining contaminants, and machine cap.

Use dilution carefully

Mixing water produces a volume-weighted average purity. For example:

1 liter at 99.5% + 1 liter at 98.5% = 2 liters at 99%.

That can turn otherwise unfinished Basewater into saleable High-Quality stock. However, adding lower-grade water to a batch already at exactly 99% drops it below the threshold.

Test both inputs, measure their volumes, and verify the mixture. Dilution redistributes contamination; it does not remove it.

Keep production and storage separate

Use separate containers for:

• Untreated water awaiting processing
• Basewater awaiting finishing
• Verified High-Quality water
• Verified Pure Water

Accidentally topping up a finished tank with untreated stock can downgrade the entire batch.

Community reports also describe Gutter Tilapia and Hydroreed plants reducing certain contaminants over time. Reported plant limits conflict across the supplied sources, so use AquaScan readings and current trait descriptions rather than relying on a promised final grade.

Finally, produce for your customers. Pure Water is not automatically appropriate for every buyer or recipe. High-Quality water remains useful inventory, while some fermentation recipes specifically need minerals that Pure Water lacks.

FAQ: Probably Stolen Water Purification Guide

What is the easiest way to make Pure Water?

Use the powered Water Purifier with at least 100% Quality, confirm Max Purity is 99.9% or higher, and process the water until testing verifies Pure Water. Starting with High-Quality stock reduces the remaining work.

Why is my water still Basewater after filtering?

A pitcher filter cannot remove every contaminant. Microbes require UV or tablet treatment, while remaining chemicals and heavy metals may require the powered purifier. Check filter durability and scan the batch before repeating treatment.

Can a normal Water Purifier make Pure Water without upgrades?

An unmodified purifier reportedly caps at 99%, which is High-Quality rather than Pure Water. Quality modules raise that ceiling. Performance modules speed processing but do not substitute for the required Quality.

Should I buy a Moisture Farm before a Water Purifier?

For upgrading purchased water or Rustwater, prioritize the purifier. Moisture Farms generate water, but community reports warn that their release-version economics are weaker than older guides suggest. Compare current output and energy costs before investing.