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Prepping for a drought (Part 1): The water audit

By The SHTF App Team

According to the EPA, the average household’s leaks can account for nearly 10,000 gallons of water wasted every year, enough to fill a swimming pool. In a drought, that wasted water isn’t just money down the drain, it is a survival resource disappearing before you even get to use it. You cannot fill a bucket with a hole in it. There is no point in buying expensive rain barrels or stockpiling jugs if your toilet is silently leaking 200 gallons a day.

Efficiency is the foundation of security. By conducting a water audit, you seal your fortress, stop paying for water you don’t use, and ensure every drop entering your home is used for hydration, hygiene, or food production. The plumber who found our leak charged eighty dollars for eleven minutes of work, and it was the best money we spent that year. He walked to the meter box at the curb, watched the little red triangle spin, and said “something in this house is running water right now, and it is not any of you.” It was a toilet flapper in the guest bathroom, silent, invisible, quietly dumping about 200 gallons a day into the sewer. The EPA says the average household’s leaks waste nearly 10,000 gallons a year, enough to fill a swimming pool. Ours was doing that alone, and we had been paying for it for months.

Here is why this matters more in a drought than any other time: you cannot fill a bucket with a hole in it. There is no point buying rain barrels, stacking jerry cans, or rationing showers if your house is silently bleeding water before you ever get to choose how it is used. Efficiency is the foundation of security.

This is Part 1 of the drought series, and it is deliberately unglamorous. No stockpiles yet, no clever gadgets. Just finding the water your house wastes and making it stop, because every drop you seal inside your system is a drop you own when the restrictions come.

Disclaimer: The information provided in this article is for general informational and educational purposes only. It is not intended as, and should not be considered, professional or plumbing advice.

The Readiness Audit

Do you know whether your home is leaking right now?

  • Green: You have run the two-hour meter test in the last year and every fixture here has low-flow hardware.
  • Yellow: Your water bill creeps up in winter when nothing outdoor is running, and you have never tested the toilets.
  • Red: You have never looked at your water meter and do not know where it is.

If you are Yellow or Red, execute Phase 1 immediately.

Phase 1: The Meter Check (The Truth Teller)

Goal: Find out if your house is secretly running water.

Your water meter is the ultimate lie detector, it measures flow even when you think everything is off.

  • Lockdown: turn off all water sources inside and outside. Shut off the icemaker, the washing machine, and make sure no toilets are flushing.
  • Locate: go to your water meter, usually in a concrete box near the street or in a basement utility area.
  • The indicator: look for the leak indicator, often a small red triangle, a silver gear, or a digital plus sign. If it is moving, you have a leak, stop here and find it. If it is still, write down the exact numbers on the odometer.
  • The wait: wait two hours without flushing a toilet or washing your hands.
  • The reveal: check the meter again. If the numbers changed, you have a slow, silent leak, likely a toilet or an underground pipe.

The Takeaway: The meter test is the difference between guessing and knowing. Two hours of patience buys you the ground truth about your own house.

Phase 2: The Toilet Test (The Silent Killer)

Goal: Catch the single most common waster in the house.

A worn-out toilet flapper can waste up to 200 gallons a day without making a sound. That was our guest bathroom.

  • Remove the tank lid and add 10 drops of red or blue food coloring (or a dye tablet) to the tank water.
  • Wait 15 minutes without flushing.
  • Check the bowl: if color has seeped into the bowl, the flapper is leaking.
  • Replace the flapper immediately. It costs less than $10 and takes five minutes.

The Takeaway: One $10 part, one fifteen-minute test. This is the highest-value five minutes in all of drought prep.

Phase 3: The Fixture Upgrade (The Efficiency Hack)

Goal: Save thousands of gallons a year without changing a single habit.

You can save water simply by restricting the flow rate of your fixtures, a set-it-and-forget-it prep.

  • Faucet aerators: unscrew the tip of your bathroom and kitchen faucets and look for the GPM (gallons per minute) rating etched on the side. Standard is often 2.2 GPM. Replace with 1.5 or 1.0 GPM aerators. You will not notice the pressure difference, but you will use 30 to 50% less water.
  • Showerheads: replace old rain-style showerheads with high-efficiency models rated 1.75 GPM or less. This saves water and the energy used to heat it.

The Takeaway: The cheapest water you will ever save is the water you never needed. Aerators are two-dollar parts that pay for themselves in weeks.

The Essential Kit Checklist

  • The tool: a water meter key (T-handle) if your meter is in a locked curb box.
  • The test: a bottle of dark food coloring.
  • The parts: 3 to 4 spare toilet flappers (universal size).
  • The upgrade: low-flow aerators for every sink in the house.
  • The knowledge: locate and tag your main water shut-off valve today.

Scenario Planner (Contingencies)

“The meter is moving, but I can’t find the leak inside.” The trap: an underground line break. The fix: the isolation test. Shut off the main valve inside the house and check the meter at the street. If it is still moving, the leak is in the service line between the street and your house, and you need a plumber.

“I rent, so I can’t change the plumbing.” The trap: feeling powerless. The fix: reversible upgrades. You can change a showerhead or aerator in two minutes. Keep the old ones in a bag under the sink and swap them back when you move out.

Next Steps

  1. Run the meter test tonight. Lock everything down, write down the number, and set a two-hour timer. That number answers a question most households have never asked.
  2. Do the toilet dye test while you wait. Ten drops of food coloring, fifteen minutes, and you will either rest easy or find a $10 fix.
  3. Read Part 2: The Navy protocol next, because once the leaks are sealed, the next gallons you save come from habit, not hardware.

Originally adapted from public EPA WaterSense guidance (public domain).