CreekWell Plumbing & Water Treatment LLC · 928-228-5770 · creekwellplumbing.com/packages/ocelot · prices as of September 2026
Under-sink reverse osmosis · 6 stages with alkalineThe Ocelot
The Kitten plus a sixth, alkaline cartridge after the membrane: a 6-stage under-sink reverse osmosis system for drinking and cooking water, with its own faucet. $999 installed — bookable for November if your water is inside its limits (on a well, iron up to 0.3 ppm and manganese up to 0.1 ppm), unless a granite, quartz or stainless counter needs a new faucet hole (see Price). Treats: As the Kitten, then some minerals added back
Warranty: System 2 years (Charger)
Read this first
Before you choose
- Water to the drain: Charger rates the membrane 1:1 — about a gallon to the drain for each gallon made. That is a membrane rating; EPA says a storage tank’s back pressure makes a system less efficient than its rating. A typical under-sink RO sends 5 gallons or more to the drain for each gallon made (EPA).
- Needs: cold-water pressure of 40–100 psi; 60–75 is normal (Charger). Its own faucet goes on the sink or counter; drilling granite, quartz or stainless costs $50 more (price list).
- On a well: iron over 0.3 ppm or manganese over 0.1 ppm is treated ahead of it (Charger), and the water must be safe to drink before it reaches the RO. That treatment is whole-house equipment, which waits for the contractor licenses, so the RO waits with it (the routes and what they cost).
- Softener already in place? A lab test of water from a tap after it (SimpleLab’s $185 panel measures iron and manganese) shows whether iron is down to 0.3 ppm and manganese to 0.1 ppm or less; if both are, the RO can be booked for November on its own.
- Upkeep: cartridges every 6–12 months and a membrane about every 3 years — yearly if it is there for arsenic (see Upkeep).
- Certification: the HydroSplash has no NSF/ANSI 58 listing, and EPA says the two main model plumbing codes require under-sink RO systems to be certified to it. Ask Neil about it before you buy (see Certification).
- Granite, quartz or stainless counter: if one of those needs a new faucet hole, the drilling line takes the Ocelot to $1,049, over the $1,000 limit, so that job waits until CreekWell’s contractor licenses are issued. The Kitten with drilling is $879.
- The alkaline stage: Charger says the cartridge returns minerals to the water, but does not publish which minerals, what is in it, how much it raises pH or how long it lasts.
Words like grain, backwash and NSF/ANSI are explained in the plain-words list.
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Spec sheet
Full specifications
Every package sheet uses these same rows in the same order, so you can compare them line by line. “Our arithmetic” marks a figure we worked out from the makers’ numbers.
What it is
The Kitten plus a sixth, alkaline cartridge after the membrane: a 6-stage under-sink reverse osmosis system for drinking and cooking water, with its own faucet.
Good fit if
- You want cleaner drinking and cooking water at the kitchen sink.
- Your test shows something RO reduces. The CDC lists lead, copper, chromium, chloride and sodium, and says RO may also reduce arsenic, fluoride, radium, sulfate, nitrate and hardness minerals.
- You have a softener and want the added sodium out of your drinking water.
- You prefer the taste with some minerals put back.
It will not
- Treat the rest of the house. New Hampshire’s environmental agency says whole-house treatment is only needed if someone, such as a young child, is likely to drink from a tap other than the treated one. Over 100 ppb of arsenic, it adds, even small amounts swallowed regularly, in the bath or from a bathroom tap, can significantly increase the risk of health effects.
- Make unsafe water safe. Charger: the water must already be safe to drink — do not use it on water that is microbiologically unsafe, or of unknown quality, without disinfection first.
- Remove arsenic III well. RO removes arsenic V very well and arsenic III poorly, and this unit does not change one into the other (Charger’s manual). A standard lab panel reports total arsenic, not the form (telling them apart takes a special sampling method, Charger says). A test of the RO water after installation shows your result.
- Remove dissolved gases such as hydrogen sulfide, the rotten-egg smell (University of Nebraska).
- Handle arsenic above 300 ppb on its own. Charger’s manual says this system can typically treat arsenic V at 0.30 mg/L (300 ppb) or less. Above that, the RO water is tested, and treating the whole house ahead of it is worth asking about (AdEdge, the Jaguar’s maker, reviews wells over 100 ppb before sizing it).
What’s in the package
- RO unit
- Charger HydroSplash 5-stage, model HS75 (Charger invoice line CWHSPLASH78), with a John Guest angle-stop feed valve and a tank valve.
- Stages
- Stage 1: 5-micron sediment cartridge. Stages 2 and 3: carbon cartridges. Stage 4: the RO membrane (Revtek, rated 75 gallons a day and 1:1). Stage 5: a carbon polishing cartridge after the tank (Charger).
- Storage tank
- 3.2-gallon pressurized tank (Charger invoice). A pressurized tank holds less water than its size: Charger’s manual gives 2.2 gallons of water for its 4-gallon tank.
- Faucet
- Global Aqua MLR28 long-reach RO faucet, brushed nickel (Charger invoice).
- Parts
- Tubing, drain clamp and fittings (Charger).
- Alkaline stage
- Charger’s alkaline conversion kit: one alkaline cartridge, two ¼″ elbows and two 2.5″ clips (Charger invoice).
Written on your estimate before you approve anything:
- Whether the drilling line applies to your countertop
- If it is there for arsenic: what happens if the test of the RO water after installation shows 10 ppb or more
- Where a new softener goes ahead of it: whether the RO goes in on the same visit or after a test of the softened water, and what happens if that test shows iron over 0.3 ppm
Certification
- We found no NSF/ANSI 58 listing for the HydroSplash (NSF’s database, checked September 2026). NSF/ANSI 58 is the standard for under-sink RO; Charger’s NSF/ANSI 58 listings are for a different model.
- Why it matters: EPA says the two main U.S. model plumbing codes, the International Plumbing Code and the Uniform Plumbing Code, require under-sink RO systems to be certified to NSF/ANSI 58. The City of Prescott has adopted the 2024 International Plumbing Code.
- The lab results in Charger’s manual are for an earlier model (CWISO475PA, with a Pentair membrane and a 4-gallon tank), not a certification of this one.
- Charger’s invoice calls the faucet NSF-certified; we could not find an NSF listing for it.
- We found no certification for this alkaline cartridge.
Sized for
- For one kitchen. The membrane is rated 75 gallons a day; Charger notes RO output depends heavily on pressure, temperature, pH and TDS, so cold winter water makes less.
Flow
- Faucet flow comes from the pressurized tank. No flow figure is published for the faucet.
Water it can handle
- Charger’s feed-water limits (owner’s manual), to check against your lab report:
Charger feed-water limits for the HydroSplash In your lab report Must be Water pressure 40–100 psi Water temperature 40–100°F pH 3–10 Turbidity (cloudiness) under 1 NTU Total dissolved solids (TDS) up to 1,500 ppm Iron up to 0.3 ppm Manganese up to 0.1 ppm Arsenic, if that is why you want it arsenic V up to 0.30 mg/L, which is 300 ppb - Chlorine damages the membrane; the carbon stages take it out first (Charger).
- For arsenic, Charger’s manual says to use it on chlorinated water (a detectable free chlorine residual), or on water shown to hold only arsenic V. A private well normally carries no chlorine, so on a well this rests on the University of Arizona’s finding that most Arizona aquifers hold arsenic V, which makes arsenic III normally not a concern (AZ1650); the test of the RO water shows whether it worked.
- Hard water: a softener ahead of RO can extend membrane life (University of Nebraska; University of Arizona).
What it uses
- Salt: none. Electricity: none — it runs on your water pressure.
- Water: about a gallon or more to the drain for each gallon made. Charger rates the membrane 1:1, but EPA says a storage tank’s back pressure makes real systems less efficient than their rating. An automatic shutoff stops the flow when the tank is full.
Space and hookups
- Under the sink: the filter unit mounts to the cabinet wall, and the tank sits within 20 feet of the faucet (Charger).
- A cold-water supply and the sink drain for the drain line.
- Septic: the drain water is modest — about a gallon or more for each gallon you drink or cook with (see What it uses).
Sodium
- Removes sodium (CDC), including what a softener adds.
Upkeep: yours and ours
| Task | How often | Who |
|---|---|---|
| Four twist-off cartridges | Every 6–12 months, more often if your water has more than 1 ppm of chlorine (Charger’s spec sheet; its owner’s manual says once a year) | You, with the $200 set mailed to you — or Neil: $179 for the visit, plus that set |
| Alkaline cartridge | Charger publishes no life for it; a new one comes in each $200 set | You or Neil, with the other cartridges |
| Sanitize the system | At each filter change (University of Nebraska: disinfect RO systems regularly) | Neil, as part of his filter-change visit |
| RO membrane | About every 3 years (Charger’s manual; 3–5 on its parts list), sooner if the TDS at the faucet climbs | Neil — price on your estimate |
| If it is there for arsenic | Charger’s manual: replace the membrane every 12 months, or sooner if a test of the RO water shows arsenic above 10 ppb, and test the water to check it is working | Neil; the lab test from SimpleLab at its price |
Price
$999 installed, flat, anywhere in Yavapai County. Arizona sales tax on the parts is already in that price (CreekWell’s invoice terms). What is not included is listed below.
The $1,000 limit is on the whole job. Anything added to the same visit — drilling a granite, quartz or stainless counter, a pressure regulator, a line to the fridge, a second under-sink RO — counts toward it; if the total reaches $1,000, the job waits until CreekWell’s contractor licenses are issued.
Included
- The system, the alkaline stage and the faucet
- Installation
- A faucet hole if your sink or counter needs one, except in granite, quartz or stainless
- Flushing the system and a taste test
- CreekWell’s two-year workmanship warranty
Not included
- Drilling granite, quartz or stainless for the faucet: $50 more (price list); your written estimate says whether it applies. On a granite, quartz or stainless counter with no spare hole, that would take the Ocelot to $1,049, over the $1,000 handyman limit, so that job waits until CreekWell’s contractor licenses are issued; the Kitten stays under it
- Lab water testing (optional; ordered from SimpleLab at its price)
Running costs
- Cartridges: the system comes with its first set. Each change after that is the $200 filter set if you change them yourself, or that set plus $179 for Neil’s filter-change visit — every 6–12 months (see Upkeep).
- First five years, changing once a year: four filter sets, $800, plus one membrane around year three (price on your estimate). Changing every 6 months doubles the sets.
- If it is there for arsenic: a new membrane every year (Charger’s manual; price on your estimate) and a yearly arsenic test of the RO water (SimpleLab’s Total Arsenic test, $60 at its price).
Paying
- A 50% deposit sets the install date; the rest is due when it is in and tested.
- The written estimate is good for 30 days. If you cancel after the three business days the FTC’s Cooling-Off Rule gives when you sign at home, what happens to the deposit (for example, parts already ordered for you) is written on the estimate before you sign.
- Zelle, cash or check: no fee. A card fee, if you pay by card, is shown as its own line on the estimate (payment terms).
Warranty
| Part | Coverage | Who |
|---|---|---|
| HydroSplash RO system | 2 years (limited) | Charger |
| Cartridges and membrane | Charger’s 2-year defect cover does not separate them out; replacing them on schedule is at your cost | Charger |
| The installation (the work itself) | 2 years — CreekWell’s warranty terms | CreekWell |
- Charger warrants the HydroSplash to be free from defects in materials and workmanship for two years, to the original buyer from a Charger dealer. Claims go to that dealer — here, Neil.
- It does not cover damage from accident, misuse, neglect, improper installation, or water pressure over 100 psi, and any change to the product voids it (Charger’s manual).
- Charger only repairs or replaces a defective part. Its manual (section 8.0) says it shall in no event be liable for incidental or consequential damages of any kind: the costs and other losses a failed part causes, such as water damage to a cabinet or floor.
- Charger does not pay for the labor to take the old part out and fit the new one. Who pays that, in the first two years and after, is written on your estimate.
- Read the full warranty in the owner’s manual under Documents.
Testing and follow-up
- Before: the free field check includes TDS, the number RO lowers. On a well, a certified lab test (SimpleLab’s Level 1 + Bacteria, $185 at SimpleLab’s price, covers arsenic and bacteria) shows what you are removing and whether the water is safe to feed an RO, as Charger requires.
- After: a TDS check at the new faucet before Neil leaves — included.
- A lab test of the RO water is the only way to see the result for a contaminant such as arsenic. Charger’s manual says to test the water when the RO is there for arsenic, and the University of Nebraska says to test for the problem after installing. It is ordered from SimpleLab at its price and is not in the package price; Neil reads the report with you free.
Code and permit notes
- Plumbing codes set how the RO drain connects: model codes call for an air gap or an approved air-gap device.
- EPA says the model codes also require under-sink RO systems to be certified to NSF/ANSI 58, and we found no such listing for this unit (see Certification). Ask Neil about it before you buy.
- The City of Prescott has adopted the 2024 International Plumbing Code; the county and other towns set their own.
- Because CreekWell both sells and installs this unit, Arizona law (A.R.S. § 32-1121(A)(4)) says you should know the installation may also be done by a licensed contractor, whose name and address you may ask for.
- If a particular job turns out to need a permit, you are told before any work starts.
Documents
From the manufacturers
- Charger HydroSplash reverse osmosis spec sheet (HS75)
- Charger HydroSplash owner’s manual and 2-year warranty
- Charger HydroSplash 5-stage sheet (alkaline option)
Independent guidance and listings
- NSF listings for Charger (drinking-water units)
- EPA WaterSense under-sink RO specification, supporting statement (plumbing codes; drain water with a tank)
- CDC: home water treatment systems
- University of Nebraska: reverse osmosis
- EPA WaterSense: under-sink reverse osmosis systems
- Virginia Tech Extension: sodium and chloride in drinking water (softeners, potassium, RO membrane life)
- University of Arizona Extension AZ1650: arsenic in well water
- University of Nebraska: choosing water treatment (retest after installing)
- City of Prescott code: 2024 International Plumbing Code adopted
These are the manufacturers’ and agencies’ own documents. Links go to their sites and can change without notice.
If this is the one
What happens next
- Call or text Neil at 928-228-5770, or request a November visit — free, no deposit. New work starts the first week of November, if your water is inside the limits on this sheet.
- Your written estimate shows the flat price and anything that applies to your sink, such as drilling a granite, quartz or stainless counter.
- A 50% deposit sets the install date; the rest is due when it is in and tested. Installs are scheduled at least a week out, for ordering the system and collecting it in Phoenix (the booking page). If you sign at your home, the FTC’s Cooling-Off Rule generally gives you three business days to cancel.
- On install day Neil fits the system and faucet, flushes it, and checks the water at the new faucet before he leaves — about two hours (Neil’s estimate).
CreekWell is not a licensed contractor. Work is performed under the Arizona handyman exemption, A.R.S. § 32-1121(A)(14): any single project is limited to less than $1,000 including labor and materials, and excludes work requiring a building permit and all natural gas and propane work.
Related packages
Compare with
The KittenDissolved solids, sodium, arsenic V up to 300 ppb and many other dissolved contaminants at one tap (not certified) · $829The Lion PackageDissolved solids and many contaminants, whole house (not certified) · $14,999.99
Compare every package side by side · the reverse osmosis page · the full price list
Service status — September 2026
Rebranding, and adding licenses
Aqua Cat Plumbing & Water Treatment is now CreekWell Plumbing & Water Treatment. Same owner, same phone number.
We are adding Arizona contractor licenses. New work restarts the first week of November; whole-house systems and other work over $1,000 wait until the licenses are issued. Jobs already on the schedule are not affected.
For new work, request a November visit or call or text 928-228-5770. Names on the list are called in the order they come in, at the prices published on this site. Joining the list needs no deposit.
Straight answers
Questions we get asked
Can you come out right now?
Not for new work.
We are rebranding and adding Arizona contractor licenses. New work restarts the first week of November; whole-house systems and other work over $1,000 wait until the licenses are issued. Jobs already on the schedule are not affected. Leave your name on the list or call or text 928-228-5770. Names are called in the order they come in, at the prices published on this site. Joining the list needs no deposit.
What does the Ocelot remove or treat?
It treats: as the Kitten, then some minerals added back.
It does not treat: the rest of the house; bacteria; arsenic III; rotten-egg gas.
The Kitten plus a sixth, alkaline cartridge after the membrane: a 6-stage under-sink reverse osmosis system for drinking and cooking water, with its own faucet.
Water it can handle:
- Charger’s feed-water limits (owner’s manual), to check against your lab report:
- Water pressure: 40–100 psi
- Water temperature: 40–100°F
- pH: 3–10
- Turbidity (cloudiness): under 1 NTU
- Total dissolved solids (TDS): up to 1,500 ppm
- Iron: up to 0.3 ppm
- Manganese: up to 0.1 ppm
- Arsenic, if that is why you want it: arsenic V up to 0.30 mg/L, which is 300 ppb
- Chlorine damages the membrane; the carbon stages take it out first (Charger).
- For arsenic, Charger’s manual says to use it on chlorinated water (a detectable free chlorine residual), or on water shown to hold only arsenic V. A private well normally carries no chlorine, so on a well this rests on the University of Arizona’s finding that most Arizona aquifers hold arsenic V, which makes arsenic III normally not a concern (AZ1650); the test of the RO water shows whether it worked.
- Hard water: a softener ahead of RO can extend membrane life (University of Nebraska; University of Arizona).
What is included in the Ocelot price?
$999 installed, flat, anywhere in Yavapai County.
Included:
- The system, the alkaline stage and the faucet
- Installation
- A faucet hole if your sink or counter needs one, except in granite, quartz or stainless
- Flushing the system and a taste test
- CreekWell’s two-year workmanship warranty
Not included:
- Drilling granite, quartz or stainless for the faucet: $50 more (price list); your written estimate says whether it applies. On a granite, quartz or stainless counter with no spare hole, that would take the Ocelot to $1,049, over the $1,000 handyman limit, so that job waits until CreekWell’s contractor licenses are issued; the Kitten stays under it
- Lab water testing (optional; ordered from SimpleLab at its price)
The equipment:
- RO unit: Charger HydroSplash 5-stage, model HS75 (Charger invoice line CWHSPLASH78), with a John Guest angle-stop feed valve and a tank valve.
- Stages: Stage 1: 5-micron sediment cartridge. Stages 2 and 3: carbon cartridges. Stage 4: the RO membrane (Revtek, rated 75 gallons a day and 1:1). Stage 5: a carbon polishing cartridge after the tank (Charger).
- Storage tank: 3.2-gallon pressurized tank (Charger invoice). A pressurized tank holds less water than its size: Charger’s manual gives 2.2 gallons of water for its 4-gallon tank.
- Faucet: Global Aqua MLR28 long-reach RO faucet, brushed nickel (Charger invoice).
- Parts: Tubing, drain clamp and fittings (Charger).
- Alkaline stage: Charger’s alkaline conversion kit: one alkaline cartridge, two ¼″ elbows and two 2.5″ clips (Charger invoice).
The full list, with sizes, is under What’s in the package on this page.
What warranty comes with the Ocelot?
System 2 years (Charger), plus CreekWell’s two-year workmanship warranty on the installation.
- HydroSplash RO system (Charger): 2 years (limited).
- Cartridges and membrane (Charger): Charger’s 2-year defect cover does not separate them out; replacing them on schedule is at your cost.
- The installation (CreekWell): 2 years — CreekWell’s warranty terms.
Terms:
- Charger warrants the HydroSplash to be free from defects in materials and workmanship for two years, to the original buyer from a Charger dealer. Claims go to that dealer — here, Neil.
- It does not cover damage from accident, misuse, neglect, improper installation, or water pressure over 100 psi, and any change to the product voids it (Charger’s manual).
- Charger only repairs or replaces a defective part. Its manual (section 8.0) says it shall in no event be liable for incidental or consequential damages of any kind: the costs and other losses a failed part causes, such as water damage to a cabinet or floor.
- Charger does not pay for the labor to take the old part out and fit the new one. Who pays that, in the first two years and after, is written on your estimate.
- Read the full warranty in the owner’s manual under Documents.
What will the Ocelot not do?
It will not:
- Treat the rest of the house. New Hampshire’s environmental agency says whole-house treatment is only needed if someone, such as a young child, is likely to drink from a tap other than the treated one. Over 100 ppb of arsenic, it adds, even small amounts swallowed regularly, in the bath or from a bathroom tap, can significantly increase the risk of health effects.
- Make unsafe water safe. Charger: the water must already be safe to drink — do not use it on water that is microbiologically unsafe, or of unknown quality, without disinfection first.
- Remove arsenic III well. RO removes arsenic V very well and arsenic III poorly, and this unit does not change one into the other (Charger’s manual). A standard lab panel reports total arsenic, not the form (telling them apart takes a special sampling method, Charger says). A test of the RO water after installation shows your result.
- Remove dissolved gases such as hydrogen sulfide, the rotten-egg smell (University of Nebraska).
- Handle arsenic above 300 ppb on its own. Charger’s manual says this system can typically treat arsenic V at 0.30 mg/L (300 ppb) or less. Above that, the RO water is tested, and treating the whole house ahead of it is worth asking about (AdEdge, the Jaguar’s maker, reviews wells over 100 ppb before sizing it).
What upkeep does the Ocelot need?
Your main upkeep: cartridges every 6–12 months; membrane about every 3 years (for arsenic: a new membrane every year and a $60 test). Each job, how often, and who does it:
- Four twist-off cartridges. Every 6–12 months, more often if your water has more than 1 ppm of chlorine (Charger’s spec sheet; its owner’s manual says once a year). Who: you, with the $200 set mailed to you — or Neil: $179 for the visit, plus that set.
- Alkaline cartridge. Charger publishes no life for it; a new one comes in each $200 set. Who: you or Neil, with the other cartridges.
- Sanitize the system. At each filter change (University of Nebraska: disinfect RO systems regularly). Who: Neil, as part of his filter-change visit.
- RO membrane. About every 3 years (Charger’s manual; 3–5 on its parts list), sooner if the TDS at the faucet climbs. Who: Neil — price on your estimate.
- If it is there for arsenic. Charger’s manual: replace the membrane every 12 months, or sooner if a test of the RO water shows arsenic above 10 ppb, and test the water to check it is working. Who: Neil; the lab test from SimpleLab at its price.
Running costs:
- Cartridges: the system comes with its first set. Each change after that is the $200 filter set if you change them yourself, or that set plus $179 for Neil’s filter-change visit — every 6–12 months (see Upkeep).
- First five years, changing once a year: four filter sets, $800, plus one membrane around year three (price on your estimate). Changing every 6 months doubles the sets.
- If it is there for arsenic: a new membrane every year (Charger’s manual; price on your estimate) and a yearly arsenic test of the RO water (SimpleLab’s Total Arsenic test, $60 at its price).
The list
Request a November visit in the first round of appointments
New work restarts the first week of November. Whole-house systems and other work over $1,000 wait until CreekWell’s contractor licenses are issued. Jobs already scheduled are not affected.