Water
Storage, treatment, collection and supply. What each treatment method actually removes, how much a household really needs, and which alternative sources survive contact with measurement.
4 published guides.
Start with these water guides
Filter, Purify, or Distill: What Each One Actually Removes
Water treatment marketing uses filter, purifier, and purification interchangeably. They are not the same thing, they remove different classes of…
How Much Rainwater Can You Collect From Your Roof?
Calculate roof runoff, realistic collection yield, tank overflow, and days of non-potable supply from rainfall and catchment area.
Can You Really Make Drinking Water From Air? What the Measurements Show
Pulling drinking water out of thin air is not a trick. It is a dehumidifier with a filter on the end, and dehumidifiers work. The question is never…
The one to read first
Filter, Purify, or Distill: What Each One Actually Removes
Water treatment marketing uses filter, purifier, and purification interchangeably. They are not the same thing, they remove different classes of…
Read thisVerified 31 Jul 2026
Water treatment marketing uses filter, purifier, and purification interchangeably. They are not the same thing, they remove different classes of…
Explore water by topic
Treatment
Filtering, purifying and distilling are three different jobs. Most products only do one.
Collection and alternative supply
- How Much Rainwater Can You Collect From Your Roof?Calculate roof runoff, realistic collection yield, tank overflow, and days of non-potable supply from rainfall and catchment area.
- Can You Really Make Drinking Water From Air? What the Measurements ShowPulling drinking water out of thin air is not a trick. It is a dehumidifier with a filter on the end, and dehumidifiers work. The question is never…
Related problems
The same guides seen from the other direction: what has actually gone wrong, rather than what the guide is about.
All water guides
Every published guide in this pillar, newest first.
How Much Rainwater Can You Collect From Your Roof?
Calculate roof runoff, realistic collection yield, tank overflow, and days of non-potable supply from rainfall and catchment area.
Can You Really Make Drinking Water From Air? What the Measurements Show
Pulling drinking water out of thin air is not a trick. It is a dehumidifier with a filter on the end, and dehumidifiers work. The question is never…
Filter, Purify, or Distill: What Each One Actually Removes
Water treatment marketing uses filter, purifier, and purification interchangeably. They are not the same thing, they remove different classes of…
The Colorado River Shortage, Explained Without the Sales Pitch
Most water-scarcity marketing in the preparedness world traces back to one real situation: the Colorado River is over-allocated, its reservoirs have…