SpringWell vs US Water Systems
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Short answerSpringWell wins for city water and moderate well problems: the CF1 and WS1 cost less up front, need no chemicals, and cap restocking at 10% instead of up to 40%. US Water Systems wins for heavy iron and sulfur (Matrixx InFusion) and for salt-free conditioning with priced replacement media (GreenWave).
SpringWell is the better buy for most homes on city water or a well with moderate iron and sulfur. Its CF1 and WS1 undercut the matching US Water Systems models up front, run without chemicals, and its worst-case restocking fee is 10% against up to 40%.
US Water Systems is the better choice for severe well water: its peroxide-fed Matrixx InFusion is rated for nearly three times the iron and nearly four times the hydrogen sulfide of the WS1. It also has far more owner reviews, 1,034 on Trustpilot against SpringWell’s 2.
Neither brand has a whole-house system certified under its own name. The one certified product both sell is the same Enpress Pioneer unit, and SpringWell sells it for less. Well & Tap did not install or test any of these; this comparison uses maker spec sheets, store prices checked September 2026 and the NSF, IAPMO and WQA listings (how we research).
Which one wins for you
- City water, chlorine or chloramine: SpringWell CF1. No drain, no outlet, $176.51 less up front than the comparable Matrixx.
- Well with iron up to 7 ppm and sulfide up to 8 ppm: SpringWell WS1. Air does the oxidizing, so there is no chemical to refill.
- Well with heavy iron, strong sulfur or iron bacteria: US Water Systems Matrixx InFusion, rated to 20 ppm iron and 30 ppm hydrogen sulfide.
- Salt-free scale control: GreenWave if you already have carbon filtration ahead of it; FS1 if it has to cope with chlorinated water directly.
- Certified lead, cyst and PFOA/PFOS reduction: the Enpress Pioneer, bought as SpringWell’s Lead & Cyst system.
Spec comparison
City water carbon filters
| SpringWell CF1 | US Water Matrixx Catalytic Carbon (10 gpm) | |
|---|---|---|
| Price (Sept 2026) | $1,160.25 plus $78.74 bypass | $1,415.50 (bypass built in) |
| Rated flow | 9 gpm | 10 gpm (5, 15 and 20 gpm sizes sold) |
| Media | KDF, catalytic carbon, 5-micron post-filter | catalytic coconut carbon, 1.5 cu ft |
| Design | upflow, no backwash | backwashes every 1-2 weeks on city water |
| Drain / power | no / no | yes / yes |
| Carbon life | 10 years (site), 6 years (2020 manual) | 5+ years; rebed price not listed |
| PFAS | claimed, not certified | no claim |
| Certification | none found | “NSF and FDA approved components”; no system listing |
| Warranty | lifetime on tank, valves, heads | lifetime tank; 10 years valve and electronics |
Well water iron and sulfur filters
| SpringWell WS1 | Matrixx InFusion (10 gpm) | Flexx InFusion (10 gpm) | |
|---|---|---|---|
| Price (Sept 2026) | $2,231.25 plus $134.25 test and $58.79 bypass | $2,982.95 | $2,255.36 |
| Rated flow | 12 gpm | 10 gpm | 10 gpm |
| Iron / sulfide / manganese max | 7 / 8 / 1 ppm | 20 / 30 / 1 ppm | 10 / 15 / 0.5 ppm |
| Method | air injection, Greensand Fusion | hydrogen peroxide injection, catalytic carbon | same, non-smart valve |
| pH range | 6.5-10 | 6-9 | 6.5-8.5 |
| Consumables | none listed | peroxide, pump tube, carbon every 3-5 years | peroxide, pump tube, carbon every 3-5 years |
| Warranty | lifetime tank; 5 years head | lifetime tank; 10 years parts; 5 years pump | 5 years tank and valve; 2 years injection |
Salt-free conditioners
| SpringWell FS1 | US Water GreenWave 2.0 (10 gpm) | |
|---|---|---|
| Price (Sept 2026) | $1,785 plus $78.74 bypass | $1,360.95 |
| Rated flow | 12 gpm | 10 gpm (15 gpm for $1,664.95) |
| Media | FutureSoft TAC | Next Scale Stop TAC |
| Media life | “5+ years” (FS page) or never (combo FAQ); no price listed | 4-6 years; $379.95 rebed kit |
| Chlorine limit | free chlorine up to 3 ppm | 0.05 mg/L |
| Iron and manganese | must be zero | under 0.3 and 0.05 mg/L |
| Certification | none | none |
| Warranty | lifetime | lifetime on tank, valve body and head |
Differences that matter
Certification: component claims, not system listings
US Water Systems says the Matrixx uses “all NSF and FDA approved components”; its only NSF listing covers material requirements for small drinking-water cartridges, not this system. SpringWell’s about page says “certified components” without naming a standard. Neither phrase means the finished system was certified to reduce anything.
Upflow tank vs backwashing tank
The CF1 runs with no drain line and no electricity, so it fits almost anywhere on the main line. The Matrixx backwashes on a timer, which flushes the carbon bed but needs a drain, a 120V outlet and 4 to 10 gpm of backwash flow depending on size.
Over 10 years the two land close. The CF1 totals $2,012.59; the Matrixx totals $1,435.50 plus whatever carbon rebeds you need, which US Water Systems does not price for this model. For reference, its 10x54 rebed kit for the InFusion, the same tank size, is $498.95.
Well water: air vs peroxide
The WS1 injects air, oxidizes iron, manganese and sulfide, and backwashes nightly. SpringWell holds orders until a $134.25 water test (non-refundable) confirms your water fits, and refunds the order if it does not.
The Matrixx InFusion feeds hydrogen peroxide from a Stenner pump into a catalytic carbon tank. That handles far more iron and sulfide, but you refill peroxide ($84.95 per two 2.5-gallon bottles), replace pump tubes every 1-5 years and rebed the carbon every 3-5 years. One owner review on the product page reports clogging after about 8 months at roughly 12 ppm iron, with no warranty cover for fouled media.
The Flexx InFusion is the budget version: about the WS1’s price, more iron and sulfide capacity, half the manganese limit, and a 5-year warranty. For help reading your results, see iron in well water and sulfur smell in well water.
Salt-free: FS1 vs GreenWave
Neither is a softener. SpringWell’s own FS page says the FS1 “won’t make water feel slick or stop spotting the way salt does”, and GreenWave’s media does not remove hardness. Neither cites a scale-reduction test standard.
GreenWave costs less and prices its media, but it tolerates only 0.05 mg/L chlorine, so city water needs carbon ahead of it. The FS1 accepts free chlorine up to 3 ppm; paired with a CF1 it is sold as the CSF1 for $2,320.50. SpringWell’s pages disagree on whether FS1 media lasts “5+ years” or never needs replacing. More in salt-free vs salt softeners.
Same Enpress Pioneer, different price
SpringWell’s Lead & Cyst Removal System and the US Water Systems Pioneer are the same Enpress unit. IAPMO file W-9981, held by Enpress, certifies it to NSF/ANSI 53 for lead, cysts and PFOA/PFOS at 4.51 gpm and 100,000 gallons.
| SpringWell Lead & Cyst (LCR1) | US Water Systems Pioneer | |
|---|---|---|
| Price (Sept 2026) | $1,554 | $1,669.09 ($2,364.09 with BodyGuard pre-filter) |
| Advertised flow | 8 gpm | 4.51 gpm rated, 8 gpm peak |
| Certified flow and capacity | 4.51 gpm, 100,000 gal | 4.51 gpm, 100,000 gal |
| Replacement cartridge | $423.90 | $523.23 |
| Warranty | “lifetime” badge; Enpress manual: 1 year system, 30 days cartridge | Enpress manual: 1 year system, 30 days cartridge |
| 10-year cost | $5,793.00 | $6,901.39 |
SpringWell’s 8 gpm figure is above the certified flow. US Water Systems’ page implies testing to EPA’s 4 ppt limit, but the certification it cites (NSF P473) has an acceptance level of 70 ppt combined PFOA and PFOS, and neither listing covers other PFAS. See best whole house filter for PFAS.
Returns and restocking fees
SpringWell’s “6-month money-back guarantee” applies only to unused, uninstalled systems, minus a 10% restocking fee, with return shipping on you. Installed systems come back only if SpringWell deems them defective.
US Water Systems accepts US Water brand residential items “if new, unused, and unopened” within 60 days, and “There may be a restocking fee of up to 40% depending on the item.” Its one-year money-back guarantee covers systems specified by its water specialists, usually after a lab test. Its commercial terms list backwashing filters and softeners as non-returnable, so confirm the residential status of a Matrixx before ordering.
On a $2,982.95 InFusion, a 40% fee would be $1,193.18. SpringWell’s 10% on a $2,231.25 WS1 is $223.13.
Both brands run permanent discounts. US Water Systems prices sit about 40% below a compare-at figure, with seasonal promos on top; SpringWell’s 15% sitewide banner is built into the prices here.
Price over 10 years
Method: purchase price, plus 10 years of listed consumables, plus media replacements that fall due within the decade, at September 2026 prices. Installation, water and electricity (under $2 a year for the Matrixx) are excluded unless noted.
| System | Upfront | Consumables, 10 years | Media | 10-year total |
|---|---|---|---|---|
| SpringWell CF1 | $1,238.99 | $421.90 sediment (10 x $42.19) | $351.70 | $2,012.59 |
| Matrixx Catalytic Carbon, 10 gpm | $1,415.50 | $20 power | rebed not priced | $1,435.50 plus rebed |
| SpringWell WS1 | $2,424.29 (incl. test, bypass) | none listed | not priced | $2,424.29 plus media |
| Matrixx InFusion, 10 gpm | $2,982.95 | peroxide, pump tubes | $997.90 (2 x $498.95) | $3,980.85 plus peroxide |
| SpringWell FS1 | $1,863.74 (incl. bypass) | pre-filters | not priced | $1,863.74 plus media |
| GreenWave, 10 gpm | $1,360.95 | none | $759.90 (2 x $379.95) | $2,120.85 |
| SpringWell Lead & Cyst | $1,554 | $4,239 (10 x $423.90) | in cartridge | $5,793.00 |
| US Water Pioneer | $1,669.09 | $5,232.30 (10 x $523.23) | in cartridge | $6,901.39 |
If your well uses one 5-gallon peroxide pack a year, add $849.50 to the InFusion. The Pioneer rows assume one 100,000-gallon cartridge a year.
Who should buy which
Best for city water: SpringWell CF1
Buy the CF1 if you want carbon filtration without a drain line or outlet, and the lower restocking fee if something goes wrong before install. Details in the CF1 review. Choose the Matrixx instead if you need 15 or 20 gpm and have a drain nearby; see the Matrixx review.
Best for moderate iron and sulfur: SpringWell WS1
The WS1 fits wells within 7 ppm iron, 8 ppm sulfide and 1 ppm manganese. No chemicals to buy, and the required water test tells you before you pay whether it will work.
Best for heavy iron and sulfur: US Water Systems Matrixx InFusion
Pick the InFusion when your test shows iron above 7 ppm, sulfide above 8 ppm, or iron bacteria. Budget for peroxide and rebeds, and get the return terms in writing first.
Best certified lead and PFOA/PFOS option: SpringWell Lead & Cyst
It is the same certified Enpress Pioneer as US Water Systems sells, for $115.09 less up front and $99.33 less per cartridge. Size it for the certified 4.51 gpm, not the advertised 8.
If you want salt-free scale control
Buy GreenWave if you already have a carbon filter ahead of it; it costs less and its media has a price. Buy the SpringWell FS1 if it will see chlorinated water directly.
Questions people ask
Are SpringWell and US Water Systems certified to NSF standards?
Neither brand has a whole-house system certified under its own name at NSF, IAPMO or WQA. The one certified product both sell is the Enpress Pioneer, listed by IAPMO under Enpress for lead, cysts and PFOA/PFOS at 4.51 gpm.
Is the SpringWell Lead & Cyst system the same as the US Water Systems Pioneer?
Yes. Both are the Enpress Pioneer cartridge system covered by IAPMO file W-9981. SpringWell sells it for $1,554 with a $423.90 cartridge; US Water Systems charges $1,669.09 with a $523.23 cartridge.
What is the restocking fee at SpringWell and US Water Systems?
SpringWell charges 10% and only accepts unused, uninstalled systems within 6 months. US Water Systems accepts new, unopened US Water brand items within 60 days and says a restocking fee of up to 40% may apply depending on the item.
Which is better for sulfur smell in well water?
Up to 8 ppm hydrogen sulfide, the SpringWell WS1 handles it with air injection and no chemicals. Above that, or with iron bacteria, the US Water Systems Matrixx InFusion is rated to 30 ppm but needs hydrogen peroxide refills.
Does GreenWave work on city water by itself?
No. GreenWave's inlet limit for chlorine is 0.05 mg/L, so chlorinated city water needs a carbon filter ahead of it. SpringWell's FS1 tolerates free chlorine up to 3 ppm.
Sources
- SpringWell CF1 product page
- SpringWell WS1 product page
- SpringWell FutureSoft FS1 product page
- SpringWell filter and salt-free combo (CSF1)
- SpringWell Whole House Lead & Cyst Removal System
- US Water Systems Matrixx Catalytic Carbon product page
- US Water Systems Matrixx Catalytic Carbon spec sheet
- US Water Systems Matrixx InFusion product page
- US Water Systems InFusion 10x54 rebed kit
- US Water Systems OxiPro hydrogen peroxide 2 x 2.5 gal
- US Water Systems Flexx InFusion product page
- US Water Systems GreenWave product page
- US Water Systems GreenWave 2.0 spec sheet
- US Water Systems GreenWave 10 gpm rebed kit
- US Water Systems Pioneer product page
- US Water Systems Pioneer replacement cartridge
- IAPMO R&T file W-9981 (Enpress Pioneer, NSF/ANSI 53)
- IAPMO R&T file W-11467 (Enpress Pioneer, NSF P473)
- US Water Systems return policy
- US Water Systems guarantee
- NSF drinking water treatment listings: SpringWell search
- Trustpilot: US Water Systems
- Trustpilot: springwellwater.com
