Cyberattacks
2023: Water System Intrusions
Iranian-linked actors compromised industrial control equipment at U.S. water facilities. This did not establish that drinking water was poisoned.
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Sentry H2O × TBN • Featured Conversation
What's really in the water your family drinks?
A conversation about the water flowing into our homes.
Stakelbeck Tonight • with Nelson
Join Nelson of Sentry H2O for a conversation on water quality, what testing can reveal, and why the water we use every day deserves a closer look.
Explore TriGuard & Save 10% →Why More Families Are Paying Attention to Their Water
Documented incidents reveal different vulnerabilities in our water systems.
Flooding
Texas Water Disruptions
Major floods can compromise wells, damage treatment infrastructure and require careful water safety precautions.
Mining
Nevada Groundwater Contamination
Historical mining near Yerington was associated with groundwater contamination, including heavy metals.
Industrial
Florida Piney Point Emergency
The 2021 wastewater reservoir emergency prompted environmental response and monitoring.
Boiling Water Kills Germs. But It Doesn't Remove Chemical Contaminants.
Boiling helps address biological threats during a boil-water advisory, but does not remove many chemical contaminants. Always follow the exact instructions of your local authorities.
Source: CDC drinking water advisory guidance
Contaminants Worth Knowing About
Different water-quality concerns call for different testing and treatment approaches.
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PFAS
Persistent industrial chemicals; some PFAS have been linked with health concerns.
Pb
Lead
Can enter drinking water through some older pipes and plumbing materials.
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Disinfection Byproducts
Certain substances can form when disinfectants react with material in water.
✧
Arsenic & Metals
Can come from geology, older industrial activity, or some contaminated water sources.
Meet the Sentry H2O
TriGuard Wellness System
A three-stage approach to treating your everyday drinking water, with specialized media for targeted filtration and mineral enrichment.
- 1ToxyGuard
Designed to reduce selected common water contaminants.
- 2AlkaGuard
Designed to enrich treated water with minerals.
- 3BioChemGuard
Adds targeted treatment for selected contaminants.
Independent Lab Highlights
Results from specific untreated and treated water samples—not universal removal guarantees.
PFOS (PFAS)
Not Detected
2024 treated sample
Lead
Not Detected
2025 treated sample
pH Level
6.83 → 8.21
2025 measured change
Review the full lab reports and confirm that the tested configuration matches the product offered.
You can't control every water system in America.
But you can make a more informed decision about the water in your home.
Save 10% • Code TBN
Claim my 10% discount →Frequently Asked Questions
Is my tap water actually unsafe?+
Most public systems meet federal standards, but quality varies by location and plumbing. Check your local water quality report or test your water.
Does TriGuard remove every contaminant?+
No filter removes everything. TriGuard targets selected contaminants — review the lab reports for specifics.
Can I use TriGuard during a water advisory?+
Always follow the exact instructions of your local authorities during any advisory.
Does TriGuard work with city and well water?+
Contact Sentry H2O to confirm the right configuration for your water source.
How often should filters be replaced?+
Follow the replacement schedule in the product documentation for each stage.