Know Your Water — Building Your Water Protocol

You have read through the Know Your Water series. You know about PFAS, fluoride, chlorine and its byproducts, heavy metals, microplastics, and the mineral trade-off. You know that boiling concentrates most of what you are trying to remove. You know that bottled water is not the answer. You know that the legal limit and the safe limit are not the same number.

Now what?

This post is the action plan. A clear, tiered framework for building a water protocol based on your situation — whether you are on municipal water, a private well, a tight budget, or working toward a comprehensive setup. No single solution addresses everything, but the right stack of choices gets you most of the way there for a reasonable investment.

STEP ONE — KNOW WHAT YOU HAVE

You cannot build an effective protocol without knowing your starting point. Filtration matched to your actual contamination profile is more effective and more cost-efficient than guessing.

Municipal water: Look up your zip code at EWG’s Tap Water Database (ewg.org/tapwater). Your utility’s annual Consumer Confidence Report is required to list detected contaminants and their levels. Read it. Note what is detected above EWG’s health guidelines even if within legal limits — that gap is where the real risk lives. Call your utility and ask whether they use chlorine or chloramine for disinfection. This changes your filtration approach.

Private well: Test. There is no substitute. A basic panel (coliform bacteria, nitrates, pH) runs $50-100 through a state-certified laboratory and is the minimum starting point. For agricultural Illinois, expand to include: arsenic, lead, atrazine, and a basic metals panel. If you are near any industrial sites, former gas stations, or dry cleaners, add a VOC panel. The Illinois Department of Public Health and your county extension office can direct you to certified labs and may have subsidized testing programs. Test every 1-3 years — groundwater contamination is not static.

STEP TWO — DRINKING AND COOKING WATER

This is where the highest impact, most cost-effective intervention lives. What you drink and cook with every day is the primary exposure route for most water contaminants.

The standard recommendation: under-sink reverse osmosis system. A quality under-sink RO system ($150-400) removes PFAS (90-99%), fluoride (85-95%), arsenic (90-95%), lead (95%+), nitrates (80-90%), chromium-6, microplastics, most heavy metals, chlorine, chloramine, and disinfection byproducts. It is the single broadest-spectrum point-of-use filtration option available at a consumer price point. It produces water slowly (stored in a tank under the sink) and wastes water in the process (typically 3-4 gallons per gallon filtered) — both are real limitations worth knowing.

Add a remineralization stage. RO removes beneficial minerals along with contaminants. A remineralization cartridge as the final RO stage (often available from the same manufacturer, $20-50) adds calcium and magnesium back to filtered water. This is not optional if RO is your primary water source — demineralized water drunk exclusively over time contributes to mineral depletion.

If RO is not currently accessible: A high-quality activated carbon block filter (NSF/ANSI 53 and 58 certified) with a separate fluoride reduction stage addresses chlorine, many PFAS, atrazine and other pesticides, and some heavy metals. It does not remove nitrates, fluoride (without the add-on stage), or all PFAS as comprehensively as RO. Better than nothing — significantly better than an uncertified pitcher filter. Berkey with black and white elements is a gravity-filter option in this category.

STEP THREE — SHOWER AND BATH WATER

Most people address drinking water and stop there. Shower and bath exposure is real — chlorine and THMs volatilize into steam and absorb transdermally. PFAS absorb through skin. For young children who spend significant time in bath water, this is a meaningful exposure route.

Shower filter with catalytic activated carbon — Addresses chlorine and chloramine in shower water. Look for filters that specifically state chloramine removal and use catalytic (not just standard) carbon. These run $30-80 and require filter replacement every 6-12 months. They are not as comprehensive as under-sink RO but significantly reduce the steam inhalation exposure from chlorine and THMs.

Practical shower modifications — Cooler water reduces volatilization of chlorine and THMs into steam. Shorter showers reduce cumulative exposure. Ventilating the bathroom (open window, exhaust fan running) reduces steam concentration. These cost nothing and compound meaningfully over daily exposure.

For bath water: Vitamin C (ascorbic acid) powder neutralizes both chlorine and chloramine on contact. Add approximately 1/4 teaspoon to a full bath, stir, then bathe. Inexpensive and effective for dechlorination specifically. Does not address PFAS or other non-chlorine contaminants.

Whole-house filtration — The comprehensive solution for shower and bath exposure is whole-house filtration — a GAC or RO system on the main water line before distribution throughout the house. This is a significant investment ($1,000-5,000+ installed) and is overkill for most households. For households with well water containing broad-spectrum contamination, or for people with specific health vulnerabilities, it may be worth considering.

STEP FOUR — BODY SUPPORT AS DAILY PRACTICE

Filtration reduces ongoing exposure. It does not address accumulated burden from years of prior exposure. Body support is the long game — the herbs and dietary practices that support the liver, kidneys, and gut in processing and eliminating what is already there. These are not crisis responses. They are daily practices that belong in your routine regardless of how good your filtration is, because no filtration system is 100% and exposure from food, air, and other sources continues.

Liver: Milk thistle seed (tincture or standardized extract daily), dandelion root (roasted as tea or coffee alternative), burdock root (decoction or tincture), turmeric with black pepper and fat. These herbs support liver cell health, bile production and flow, and phase I and phase II detoxification pathways that process environmental chemicals.

Kidneys: Nettle leaf tea daily (mineral-rich, gentle diuretic, supports renal filtration), marshmallow root cold infusion (demulcent, soothing to urinary tract), adequate hydration with filtered water. The kidneys are the primary route of elimination for many water contaminants — supporting their function matters.

Gut: Fermented foods daily for microbiome repair and maintenance, prebiotic fiber (oats, garlic, onion, leeks, green banana), marshmallow root and slippery elm for gut barrier support, adequate dietary fiber to support transit and bile acid binding. The gut microbiome has been disrupted by chlorinated water, agricultural chemical residues in food, and microplastics — active rebuilding through fermented foods is one of the most impactful dietary interventions available.

Minerals: If using RO without remineralization, address through diet (dark leafy greens, nuts, seeds, legumes, sea vegetables) or mineral drops added to water. Nettle leaf tea counts toward both kidney support and mineral intake. Do not let comprehensive filtration create a mineral gap.

THE TIERED PROTOCOL — WHERE TO START BASED ON YOUR SITUATION

Minimum viable protocol (limited budget, renting, starting point): Know what is in your water (EWG lookup or basic test). Replace plastic water bottles and containers with glass or stainless steel. Install a quality certified carbon block filter on your drinking water tap. Begin daily liver and kidney herb support. Stop buying bottled water.

Standard protocol (homeowner, moderate investment): Everything above plus under-sink RO with remineralization stage for drinking and cooking water. Shower filter with catalytic carbon. Vitamin C in bath water. Comprehensive dietary mineral and fermented food intake. Full herb support routine.

Comprehensive protocol (well water, vulnerable household members, high contamination area): Everything above plus comprehensive well water testing panel repeated every 1-2 years. Whole-house pre-filter (sediment and carbon) before the pressure tank. Point-of-use RO with remineralization for drinking and cooking. Shower filter on every shower. Evaluate whole-house filtration based on test results. Medical heavy metals testing if indicated. Environmental medicine consultation if significant contamination is found.

GRID-DOWN WATER PROTOCOL

Everything above assumes grid power and functioning infrastructure. For grid-down scenarios, the protocol shifts. The Root Cellar covers water procurement, gravity filtration, and storage in detail — see Water: Finding, Filtering, Storing and the Gravity Water Filter Build for the full grid-down protocol. The short version: a quality gravity filter (Berkey with black and white elements, or a DIY activated carbon gravity filter) handles biological contamination and most chemical contamination without power. Store filtered water in glass or food-grade stainless containers. Know your local water sources and their contamination risks before you need them.

THE BOTTOM LINE

You cannot eliminate all exposure. The goal is informed, systematic reduction — knowing what is in your water, filtering what you can, supporting your body’s elimination pathways, and making the reductions that are within your means and your situation. Perfect is the enemy of good here. An under-sink RO system and a daily cup of nettle and dandelion tea is better than paralysis waiting for a whole-house system. Start where you are. Build from there.

The water is complicated. You do not have to be.

FROM THE WASTELAND

Leaf Juice — Wasteland Survival Series, Book 1

Every herb in the body support section of this post — milk thistle, dandelion, burdock, nettle, marshmallow root — has full preparation protocols in Leaf Juice. Teas, tinctures, and tonics for daily practice.
Paperback | Kindle

KaNafia