The first rule of buying water-treatment equipment: don't. Not until you have numbers. The most expensive mistake homeowners make is over-buying or wrong-buying based on a complaint rather than a test result. A $15 strip kit will tell you whether you have hard water. A $250 lab kit will tell you whether you have arsenic. A $0 utility lookup will tell you the chlorine, fluoride, and disinfection-byproduct levels your city was hitting six months ago.
Here's the three-tier process, what each tier costs, what it tells you, and how to use the results to make actually-informed decisions.
Tier 1: Free (5 minutes) — utility data lookup
If you're on a public water utility — about 87% of U.S. households — your water has already been tested. Federal law requires every public community water system to publish an annual Consumer Confidence Report (CCR) listing the contaminants detected, the levels, and the EPA limits. You can also pull the same data from the EPA's Safe Drinking Water Information System (SDWIS) and the EWG Tap Water Database, which presents it alongside their stricter health-based guidelines.
Three places to look:
- Crystal Flow's free zip-code water-quality lookup — enter a zip, see EPA SDWIS data for the utilities in that area. We built this so customers can look up their water before they ever talk to us.
- EPA Consumer Confidence Report finder — find your utility's official annual report.
- EWG Tap Water Database — same data, presented with EWG's tighter health guidelines and pollution-source breakdowns.
What this tells you: chlorine and chloramine levels, hardness category, fluoride, total dissolved solids, disinfection byproducts (TTHMs and HAA5), nitrate, lead and copper at the system level, and increasingly PFAS as utilities complete their EPA UCMR-5 monitoring.
What it doesn't tell you: lead from your home's plumbing (this happens inside your walls, not at the treatment plant — the utility's "lead" reading is a sampled estimate that may not reflect your specific house), or anything specific to your faucet. For those you need the next tier.
Tier 2: $15-$30 — DIY strip kits
Strip kits give you a fast at-home gut check. They're qualitative — meaning they tell you "low / medium / high" rather than exact numbers — but for some questions that's all you need.
Three kits worth considering:
- Varify Complete Drinking Water Test Kit — ~$30. Tests 17 parameters including hardness, chlorine, pH, iron, copper, lead, nitrate, fluoride, plus a separate coliform bacteria culture test. Best general-purpose strip kit on the market right now.
- Hach 2745325 5-in-1 — ~$15. Hardness, total alkalinity, chlorine, pH, copper. Simpler, cheaper, fewer parameters.
- JNW Direct 16-in-1 — ~$20. Similar coverage to Varify, slightly less reliable.
What strips are good for:
- Confirming whether your water is hard (and roughly how hard)
- Checking chlorine levels at your tap
- Testing pH (corrosivity check)
- Quick after-you-installed-a-system gut check that something changed
What strips are not good for:
- Buying decisions on $1,000+ equipment
- Detecting arsenic at the EPA limit (10 ppb is below most strip detection)
- PFAS at any level (no consumer strip exists)
- Bacteria (the coliform culture in a strip kit is OK as a screening tool but not a substitute for a lab test if you've had a positive)
Tier 3: $179-$549 — certified lab kits
For real numbers — especially before buying treatment equipment, or if you're on a private well, or if you've got specific concerns like lead or PFAS — you need a certified mail-in lab kit. Three options worth using:
| Lab | Panel | Price | Best for |
|---|---|---|---|
| Tap Score | Essential Home (56 analytes) | $199 | General-purpose city water |
| Tap Score | Advanced Home (116 analytes) | $299 | Comprehensive, includes VOCs and metals |
| Tap Score | PFAS Lab Test | $299 | 14 PFAS compounds specifically |
| KETOS | Home Safety Screen | $549 | 18 PFAS plus full panel |
| SimpleLab | City Water Tap Score (~70 analytes) | $179 | Budget option for municipal customers |
| State-certified local lab | Homeowner well panel | $200-$350 | Wells (find via your county health dept.) |
How a mail-in lab kit works:
- You order online; the lab ships sample bottles, instructions, and a prepaid return shipping label.
- You collect samples following the instructions exactly (timing of which faucet to use, how long to flush, etc. — these matter).
- You ship the bottles back same-day (timing matters for bacteria; less so for metals).
- 5-10 business days later you get a detailed PDF report with measured concentrations, EPA limits, and pass/fail/concern flags for every analyte.
The reports from Tap Score and KETOS are particularly readable — they explain what each contaminant is, where it comes from, what level is safe, and which treatment technologies remove it. Worth the money even if just for the educational value.
How to read the results
Two reference points matter, and they're often very different numbers:
- EPA Maximum Contaminant Level (MCL). The legally enforceable federal limit. Anything above this requires action by your utility (or you, if you're on a well).
- EWG Health Guideline. The Environmental Working Group's stricter, peer-reviewed health-based guideline. Often 100x-1000x lower than the MCL because EWG bases their numbers on cancer risk thresholds rather than what's economically feasible to treat.
The gap between EPA MCL and EWG guideline is where personal judgment lives. If your arsenic is at 2 ppb, you're 5x below the EPA limit but 500x above EWG's cancer-risk guideline. Whether that's "safe" depends on your tolerance, your age, whether you're pregnant or have small children, and how much of your daily water comes from this tap.
What to do next (matching contaminants to systems)
Don't buy equipment until you can match each problem to a category:
| What your test showed | Crystal Flow combination that handles it |
|---|---|
| Hard water — scale on faucets, glassware, water heater, dry skin and hair | T-18 — $2,500 (TipaTech salt-free scale prevention — up to 99% scale reduction in internal plumbing, ~50% external, without demineralizing the water) |
| Chlorine, chloramine, taste, odor | T-18 whole-home + LotusDY — $1,750 at kitchen |
| Lead leaching from home plumbing | T-18 (whole-home reduction of lead release from pipes and connectors) + LotusDY at kitchen |
| Fluoride, where present | T-18 (TipaTech: designed to reduce fluoride levels based on source water) + LotusDY at kitchen |
| Arsenic-related compounds in source water | T-18 (TipaTech ceramic adsorption media designed to assist in reducing arsenic and related compounds from groundwater and agricultural sources) + LotusDY at kitchen |
| Hydrogen sulfide / rotten egg smell, radon-related gases, ammonia | T-18 (TipaTech patented air-release stage). Diagnosis: rotten-egg smell guide. |
| Microplastics, rust, fine particulates, cyst-sized particulates (Giardia-class) | T-18 (~1-micron multi-stage filtration) + LotusDY (NoSmosis selective ~0.007μ) |
| Aerobic bacteria & parasite-related particulates | T-18 ("Fights Bacteria & Parasites" — TipaTech multi-stage design supports reduced aerobic microbial activity within the unit and reduces cyst-sized particulates) + LotusDY at kitchen |
| Pesticides, agricultural chemicals, organic pollutants | T-18 (multi-stage adsorption — TipaTech: enhanced reduction with the Omega Extension) + LotusDY at kitchen |
| Pharmaceutical residues (where present) | LotusDY (~0.007μ selective membrane) + T-18 with Omega Extension whole-home |
| Heavy metals (general) | T-18 (semi-precious metal stage assists in reducing selected heavy metals as part of multi-stage treatment) + LotusDY at kitchen |
| Mineral calibration / personalized drinking water | LotusDY patented "Define Yourself" mineral-adjustable membrane + optional magnesium enrichment |
The T-18 and LotusDY are manufactured by TipaTech; Crystal Flow H2O is the authorized U.S. dealer. The hedged language above ("designed to assist in reducing", "supports reduced", "engineered to help reduce") reflects the manufacturer's official claim scope and source-water-dependent performance — actual results vary by influent water quality, plumbing, and operating conditions. Free 10-minute phone consult walks through your test results and confirms the right combination for your home.
Free zip-code water-quality lookup
Skip the utility website hunt. Enter your zip, see what's in your water, get a starter recommendation in 30 seconds.
Open the lookup tool See all systemsFAQ
Do I need to test my water if I'm on a public utility?
It depends what you want to find out. Your utility's CCR covers the treatment-plant outflow but not lead leaching from your home's plumbing or current PFAS levels (which most utilities haven't been required to test for yet). For lead and PFAS specifically, in-home testing tells you something the CCR can't.
Are pharmacy strip kits accurate?
They're qualitative, not quantitative. Strips give you a color-band range — fine for confirming hard water or chlorine, not fine for measuring arsenic, lead, or PFAS. Use them for a five-minute gut check, not for buying decisions.
How often should I test my water?
EPA recommends private-well owners test for total coliform bacteria and nitrate annually, plus a comprehensive panel every 3-5 years. Public-utility customers can review their CCR yearly (free) and run a one-time certified-lab test before installing equipment.
What's the cheapest way to find out what's in my water?
Free. Use our zip-code water-quality lookup, which pulls EPA SDWIS data for your area, or the EWG Tap Water Database.
After I get my test results, what do I do?
Match contaminants to system categories before buying anything. The decision table above is the cheat sheet. We're happy to walk through your results on a free phone consult.
Which Crystal Flow system fits my situation?
For whole-home treatment, the TipaTech T-18 ($2,500 with free U.S. shipping) handles scale (salt-free, up to 99% in internal plumbing without demineralizing the water), chlorine, chloramine, lead leaching from home plumbing, fluoride where present, arsenic-related compounds, hydrogen sulfide and other gases, microplastics, cyst-sized particulates including the Giardia class, aerobic bacteria and parasite-related particulates, pesticides, and agricultural chemicals — per TipaTech's published claims. The LotusDY ($1,750) at the kitchen sink adds drinking-water polish via its NoSmosis selective membrane at ~0.007μ with user-adjustable mineral content. The T-18 + LotusDY combination is the complete TipaTech home water-quality stack — call us for a free consult to confirm the fit for your home.
Already got results? Send them to us.
Email your CCR or lab report to info@crystalflowh2o.com or call (916) 400-0725. Free 10-minute walk-through: we'll tell you exactly what each number means and which combination of stages fits your home — T-18, LotusDY, and any integrated pre-treatment (anion exchange, oxidation, disinfection) we'd spec as one stack.
Call (916) 400-0725 Email your resultsReferences & further reading
- EPA — "Consumer Confidence Reports"
- EPA — "Types of Drinking Water Contaminants"
- EPA — "Private Well Testing Guidance"
- CDC — "Testing Private Drinking Water Wells"
- EWG Tap Water Database — utility-level contaminant lookup