Water Security
You'll build redundancy: a source that doesn't need the grid, storage that carries you for weeks, and irrigation that runs on gravity while everything else is off.
Springs, solar well pumps, rainwater capture, emergency storage and irrigation designed to run without a single watt of utility power. Pressure math, pipe sizing and the freeze details that only surface in year two.
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4 guides
across 5 subtopics — every one of them written from a system running on real ground, with the numbers left in.
Start here
Read in this order and you'll go from "I don't know what I have" to a costed first build.
Rainwater Harvesting
Rainwater Harvesting: Roof Yield Math, Tank Sizing and First Flush
Calculate real roof catchment yield, size your tanks against local rainfall gaps, and build the first-flush and filtration chain that makes stored rainwater safe to use.
11 minIntermediate
Solar Well Pumps
How to Size a Solar Well Pump for a 300-Foot Well
Calculate total dynamic head, choose between helical rotor and centrifugal pumps, size the solar array and design storage for a deep off-grid well.
11 minIntermediate
Spring Water Systems
How to Develop a Spring for Gravity-Fed Homestead Water
Locate a spring, excavate to the vein, build a spring box, calculate head pressure and bury the line — a complete gravity-fed water system with no pump.
15 minAdvanced
Water security is a redundancy problem, not a gadget problem. Rainwater harvesting is usually the cheapest second source you can add: these guides show what a roof actually yields per inch of rain, how to size storage for your climate, and how to keep the water clean enough for the use you intend.
If you're on a well, a solar well pump removes your single point of failure. There's a full sizing walkthrough here for 300 feet of lift on 600 to 900 watts of array, including why you pump slowly into storage instead of on demand. Have fall on the property? A developed spring can deliver 40 psi at the house with no pump at all.
Emergency water storage closes the gap: one gallon per person per day is survival, five is normal life with dishes and hygiene. Work out your own target with the tools here, then use gravity drip irrigation running at 4 psi so the garden doesn't drain the tank in August.
4 guides covering solar well pump, emergency water storage, gravity fed water system, drip irrigation design.
Rainwater Harvesting
Rainwater Harvesting: Roof Yield Math, Tank Sizing and First Flush
Calculate real roof catchment yield, size your tanks against local rainfall gaps, and build the first-flush and filtration chain that makes stored rainwater safe to use.
11 minIntermediate
Irrigation
Gravity-Fed Drip Irrigation Design for Low Pressure
Design low-pressure gravity drip irrigation for a garden: tank height, emitter selection, filtration, header sizing and zone layout for even watering at 4 psi.
8 minBeginner
Solar Well Pumps
How to Size a Solar Well Pump for a 300-Foot Well
Calculate total dynamic head, choose between helical rotor and centrifugal pumps, size the solar array and design storage for a deep off-grid well.
11 minIntermediate
Spring Water Systems
How to Develop a Spring for Gravity-Fed Homestead Water
Locate a spring, excavate to the vein, build a spring box, calculate head pressure and bury the line — a complete gravity-fed water system with no pump.
15 minAdvanced
Enter household size, outage length and whether you have livestock or a garden, and get your storage target plus the cheapest way to hit it.
In the workshop — coming soon
Skip the trial and error
Water-Flows GuaranteeWater
4.9 · 41 reviews
Helical rotor DC pump, controller, safety rope and drop pipe sized for deep wells with no grid connection.
“Five days without power and the taps never stopped. The pump just runs whenever the sun is up and the tank stays full.”
$2,140
Pressure-or-Refund GuaranteeWater
5.0 · 22 reviews
Spring box, screened intake, overflow assembly and 300 ft of buried-rated line for a true gravity system.
“We lost power for five days in January. The neighbors drove to a hotel. We had light, heat, and water at 42 psi the whole time because it all runs downhill.”
$1,245
Never-Again GuaranteeWater
4.7 · 57 reviews
Low-pressure emitters, filtration and headers designed to run off a tank at 4 psi — no pump anywhere in the loop.
“We lost power for five days in January. The neighbors drove to a hotel. We had light, heat, and water at 42 psi the whole time because it all runs downhill.”
$412
Advanced · 22 lessons
Develop a spring and deliver pressurized water to a homestead with no pump and no power.
$199
Proof
"We lost power for five days in January. The neighbors drove to a hotel. We had light, heat, and water at 42 psi the whole time because it all runs downhill."
Tom Ferrar
Bennington, Vermont
1,500 gallons stored · 5-day outage, zero disruption
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