US Water Crisis: What to Buy and Do This Summer

If you’re worried about water shortages, boil-water advisories, or sudden “do not use” alerts, here’s the short answer: store at least a two-week supply of drinking water, choose a certified filter matched to your risks, and cut outdoor and household demand with WaterSense fixtures and smarter irrigation. Start with drinking water, then sanitation water, then long-term efficiency upgrades.

What to buy first: food-grade storage containers (or sealed bottled water), a gravity or under-sink filter with the right NSF/ANSI certifications, unscented household bleach for disinfection, and basic leak-stopping gear. If you irrigate a yard, add a WaterSense-labeled smart controller and mulch or convert turf to drought-tolerant landscaping.

Why this summer feels different

Across the US, water anxiety is no longer abstract. Gulf Coast cities have faced industrial contamination scares and recurring boil-water notices. In the West, reservoirs tied to the Colorado River have yo-yoed with weather yet remain in a long-term deficit, leading to tighter allocations and summer restrictions. Heat waves intensify demand right when supplies are strained, and aging pipes make outages and contamination more likely.

This guide is a practical, purchase-focused playbook for households and small businesses. It explains what to buy, in what order, and how to adapt gear and tactics to your living situation.

Who this is for

• Renters who may face boil-water advisories or brief outages
• Homeowners who want resilience during restrictions and infrastructure hiccups
• Well owners who need backup power, testing, and disinfection plans
• Small businesses (food service, salons, clinics, offices) that must maintain safe water for customers and staff

The 80/20: What to do this week

• Store drinking water now: at least 1 gallon per person per day for 14 days (more in hot climates: plan 1.5–2 gallons/day per person for drinking alone).
• Pick a filter that matches your risks and carries relevant NSF/ANSI certifications (details below).
• Buy unscented household bleach (5–9% sodium hypochlorite) and learn safe dosing if you cannot boil.
• Add low-flow aerators and showerheads; fix toilet leaks (dye test); program irrigation for early morning only.
• Photograph your main shutoff valve; label it; stash a wrench and spare washers.

What changed—and why it matters

• Triple threat: drought cycles + heat waves + aging infrastructure mean more advisories and restrictions.
• Chemical vs. microbial risks: not all advisories are equal. Boil-water notices address microbes; “do not use” can indicate chemical contamination where boiling or standard filters may not help.
• Outdoor demand: landscaping can be half or more of household use in arid regions. Cutting this is the fastest path to resilience and lower bills.

Priority 1: Safe drinking water during advisories and outages

Store first, filter second

• Storage target: Minimum two weeks (FEMA’s three-day baseline is often too short for real-world disruptions). For a family of four, that’s 56–112 gallons for drinking alone depending on heat.
• Containers: Use food-grade HDPE jerry cans (5–7 gallons), stackable water bricks, or a 55-gallon food-grade drum with a hand pump. Clearly label and date.
• Bottled water: Factory-sealed bottles are convenient for short events and “do not use” emergencies; rotate stock every 1–2 years.

Disinfecting stored or questionable water

• Boil: Bring to a rolling boil for 1 minute (3 minutes above 6,500 ft). Let cool, store covered.
• Bleach: If boiling isn’t possible, add unscented household bleach (5–9% sodium hypochlorite) at about 1/8 teaspoon (8 drops) per gallon, mix, wait 30 minutes. Water should have a slight chlorine smell. When in doubt, follow CDC/EPA/local guidance printed on the label or from your health department.
• Pre-filter turbid water through a clean cloth or coffee filter before disinfection to improve effectiveness.

Choose the right filter (and the right certification)

Not all filters are equal. Match technology to the risk and verify certifications:

• NSF/ANSI 42: Taste/odor, chlorine, particulate (aesthetic only)
• NSF/ANSI 53: Health contaminants (e.g., lead, cysts, some VOCs)
• NSF/ANSI 58: Reverse osmosis systems (health claims under RO)
• NSF/ANSI 55: Ultraviolet microbiological water treatment
• NSF/ANSI 401: Emerging contaminants (pharmaceuticals, some chemicals)
• NSF/ANSI/CAN standards with PFAS claims (or NSF P473 legacy protocol): PFOS/PFOA reduction

Technology trade-offs:

• Gravity-fed countertop (ceramic/carbon)

  • Pros: No power, works during outages, good for sediment and many microbes (if certified), portable
  • Cons: Slow, limited chemical removal unless specifically certified, periodic priming/cleaning
  • Best for: Renters, emergency kits, boil-water notices

• Under-sink carbon block (with 53/401 claims)

  • Pros: Fast flow, great for taste, lead, some VOCs; easy daily use
  • Cons: Won’t remove salts; PFAS only if explicitly claimed; cartridge changes required
  • Best for: City water with aesthetic/lead concerns, everyday use

• Reverse osmosis (RO)

  • Pros: Broad reduction (salts, lead, many PFAS, nitrates); excellent for mixed contaminants
  • Cons: Wastes some water during operation; slower; requires periodic filter/membrane changes
  • Best for: Chemical risk profiles, desert regions with high TDS, households prioritizing PFAS reduction

• UV disinfection (NSF 55)

  • Pros: Inactivates microbes quickly; whole-home options
  • Cons: Needs power; requires prefiltration to low turbidity; no chemical removal
  • Best for: Microbial risk (e.g., well water, boil advisories) when paired with sediment/carbon

• Distillers

  • Pros: Excellent for many inorganic contaminants and microbes; countertop; independent of water pressure
  • Cons: Energy-intensive; flat taste without remineralization; slow
  • Best for: Specific chemical concerns, small volumes for infants or immunocompromised users

• Softeners (ion exchange)

  • Note: Improves hardness, not safety. Pair with a health-focused filter if needed.

Buying tip: Always verify certification by checking the model number on NSF’s listings or the manufacturer’s current certificate. Marketing claims without standard numbers aren’t enough.

Special cases: “Do not use” vs. boil-water notices

• Boil-water advisory (microbial risk): Boil or use appropriately certified microbial protection (e.g., NSF 55 UV with prefiltration, or filters with cyst reduction). Many carbon-only pitchers are not sufficient.
• “Do not use” (chemical risk): Do not boil (can concentrate chemicals). Most household filters may not be certified for the specific contaminant. Use sealed bottled water or a solution proven for that chemical; follow official guidance.

Priority 2: Keep taps running when the system falters

• Bathtub emergency liners (single-use, ~100 gallons) for sanitation and flushing when outages hit.
• Food-grade hoses and a potable-water-safe transfer pump for moving water from drums to sinks.
• Backflow preventer valves to protect your home and public mains when you connect alternative supplies.
• For well/booster pumps: A generator or battery backup sized for pump startup amperage; test under load.
• Apartment-friendly: Collapsible 2–5 gallon containers; a compact manual hand pump; a gravity filter.

Priority 3: Cut demand fast (and your bill)

Indoor fixtures (look for EPA WaterSense label):

• Showerheads ≤2.0 gpm
• Faucet aerators 0.5–1.0 gpm (bath) and 1.0–1.5 gpm (kitchen)
• Toilets 1.28 gpf or less (dual-flush where allowed)
• Appliance swaps: Front-load washers (13–17 gallons/cycle) and ENERGY STAR dishwashers (≈3–4 gallons/cycle)

Outdoor use:

• Replace or reduce turf; use native, drought-tolerant plants and deep mulch
• Drip irrigation instead of sprays; fix overspray; water pre-dawn
• Smart irrigation controller (WaterSense) tied to local weather can cut use by 15% or more
• Rain barrels or cisterns for irrigation where legal; screen and first-flush diverter; don’t drink untreated rainwater

Greywater (where codes allow):

• Simple laundry-to-landscape systems for trees and shrubs; use plant-safe detergents; follow local permitting

Priority 4: Monitor and prevent waste

• Whole-home leak sensors and auto-shutoff valves can stop catastrophic losses
• Smart meters or sub-meters help find silent leaks
• Monthly DIY audit: Check the meter with all taps off; dye-test toilets; inspect irrigation zones

Priority 5: Small business continuity (cafés, salons, clinics, offices)

• Minimum 3–7 days of sealed drinking water per person on site; more if you must stay open during advisories
• A certified point-of-use system matched to your risk profile and a written switch-over SOP
• Sanitation reserve: Non-potable water for cleaning and restrooms (follow health code)
• Backflow compliance and routine filter change logs for inspections
• Contingency contracts: Portable handwashing stations, ice from certified suppliers, and water delivery

Priority 6: Private wells

• Test annually for coliform bacteria and nitrates; test after floods or work on the system
• Maintain a sanitary well cap; keep surface water away from the wellhead
• Pre-sediment filtration (e.g., 5–20 micron) before UV or other treatment to protect equipment
• Generator sized for well pump starting surge; store spare pressure switch and gauge
• Shock chlorination after contamination events; follow your state extension’s protocol

Choosing your setup by living situation

• Studio or 1–2 person apartment

  • 14–28 gallons of stored drinking water
  • Countertop gravity filter with 53 claims (lead/cysts) or RO countertop if PFAS/salts a concern
  • Collapsible containers for short outages; bleach on hand; small leak sensors

• Family home on city water

  • 56–112+ gallons stored
  • Under-sink carbon block (53/401) or RO at the kitchen; whole-home sediment + UV if microbial risk recurring
  • Irrigation controller upgrade; turf reduction; WaterSense fixtures throughout
  • Drum or large bricks for sanitation; transfer pump and hoses; auto-shutoff leak valve

• Rural home on a well

  • Storage as above
  • Pre-sediment + UV; consider RO at kitchen if chemistry warrants
  • Generator for pump; spare parts kit; periodic water testing

Cost planner: what to buy at your budget

• Under $100

  • Two 7-gallon jerry cans or a case of bottled water per person
  • Aerators/showerheads; toilet dye tablets; a shutoff wrench; unscented bleach

• $100–$500

  • Countertop gravity filter or entry under-sink carbon block with 53 claims
  • Leak sensors for key areas; basic drip irrigation parts and mulch
  • Collapsible bathtub liner for outages

• $500–$2,000

  • High-capacity RO system or UV + prefiltration setup
  • Smart irrigation controller and zone repairs; turf conversion starter plants
  • Whole-home auto-shutoff valve

• $2,000+

  • Cistern and transfer pump; generator for well/booster pumps
  • Whole-home treatment (sediment + carbon + UV) where justified by testing
  • Professional xeriscaping and greywater system (where permitted)

Safety notes you should bookmark

• Don’t assume: A filter pitcher that improves taste may not make water safe under a boil advisory.
• Chemical spills: During a “do not use,” rely on sealed bottled water unless officials specify a certified treatment that addresses the exact chemical.
• Follow the label: For bleach disinfection, use unscented household bleach and follow CDC/EPA or local health guidance; concentrations vary by product.
• Keep it clean: Sanitize containers before filling (1 tsp bleach per quart of water; contact time 30 seconds; rinse with safe water).

30-60-90 day implementation checklist

• Days 1–30: Store two weeks of drinking water; install aerators/showerheads; buy a certified filter; map your shutoffs; gather bleach and a first-aid water kit (funnels, cloths, spare cartridges).
• Days 31–60: Add leak sensors; switch irrigation to early morning; patch broken sprinklers; add mulch; start turf-to-native pilot area.
• Days 61–90: Consider RO or UV if risks warrant; upgrade irrigation controller; plan a generator for well/booster pumps; schedule a well/water test.

Key takeaways

• Start with storage: You can’t filter what you don’t have.
• Certifications matter: Match NSF/ANSI standards to your risk; verify listings.
• Outdoor use is the lever: Smarter irrigation and xeriscaping deliver the biggest savings.
• Plan for the advisory you’ll actually get: Boil-water vs. “do not use” require different responses.

FAQ

Q: How much water should I store?
A: At least 1 gallon per person per day for 14 days. In hot climates or for physically active people, plan 1.5–2 gallons/day just for drinking. Don’t forget pets (roughly 1 ounce per pound of body weight per day as a baseline).

Q: Are gravity filters enough for PFAS?
A: Only if the unit has explicit PFAS reduction claims verified under NSF/ANSI standards (often 53/58 with PFAS claims or the legacy P473 protocol). Many gravity units do not. Check the exact model on NSF’s listings.

Q: Does RO waste too much water?
A: Modern RO systems can have waste ratios near 2:1 to 3:1. If supply is tight, run RO when you have pressure, collect the reject stream for non-potable uses (e.g., flushing, outdoor cleaning), and combine RO with broader conservation.

Q: Is distillation better than RO?
A: Distillers excel at many inorganic contaminants and microbes but are slow and energy-intensive. RO covers a broad range, including many PFAS, and is more practical for daily use. Some households keep a small distiller for infants or specific medical needs.

Q: How long should I boil water during a boil advisory?
A: Bring water to a rolling boil for 1 minute (3 minutes above 6,500 feet). Let cool and store covered.

Q: Can I drink rainwater?
A: Not without proper treatment and testing. Roof runoff can contain microbes, metals, and chemicals. Many people safely use rainwater for irrigation; drinking requires a properly designed and maintained treatment train and compliance with local codes.

Q: What about renters with little storage space?
A: Use stackable water bricks, under-bed containers, or rotate sealed bottled water. A compact gravity filter and a collapsible 5–7 gallon container provide flexibility during short outages.

Q: Is bottled water always safer in emergencies?
A: Factory-sealed bottled water is reliable during chemical “do not use” events and boil-water advisories. For long-term resilience, combine modest bottled reserves with certified point-of-use treatment and stored tap water prepared in sanitized containers.

Source & original reading: https://www.wired.com/story/the-summer-the-american-water-crisis-turned-real/