Trusted in 1,200+ Homes

Clack 2.5 Cubic Foot Non Backwashing Acid Neutralizer

Trusted in 1,200+ Homes
|
🇺🇸 Made in USA

Clack 2.5 Cubic Foot Non Backwashing Acid Neutralizer

Installation
"I never give reviews but this product was 5 stars from start to finish. So refreshing to deal with a company that lives up to what they advertise." ★★★★★
Jack S, Maryland
Installation
"Side fill port makes media changes easy. Arrived fast, installed solo without issues, and the calcite media quality is far better than local supply." ★★★★★
Daniel M, Cape Cod
Installation
"Easy installation, excellent water flow, wish I had bought this 20 years ago. - Feb 7th 2026" ★★★★★
Joe H, Pennsylvania
$1,495.00
Free Freight Shipping to Lower 48 States
  • Complete USA-made System
  • 2.5 cu ft Vortech™ Media Tank
  • Clack C1190 Control Valve
  • 250 lbs Calcite Media
  • Bypass Valve & Fillport
  • x2 Service Funnels
  • High Flow Performance
  • Built for Longevity & Compatibility
Non-backwashing, no drain line, no electricity. Installs directly into your main water line with standard 1″ threaded connections. Designed for straightforward DIY installation.

Vortech® Technology uses a patented internal distributor system to maximize media contact, reduce channeling, and deliver consistent treatment across the entire tank.

The result is higher efficiency, longer media life, and reliable performance without unnecessary complexity or wasted capacity. Built for real-world conditions and proven across thousands of installs.

Vortech internal distributor system diagram
System Model 2.5 cu ft Vortech Upflow with Fillport
Flow Rate 17 GPM Flow Rate
Capacity 2–6 Baths (2–10 People)
pH Treatment 4.0 – 6.9 (Neutralizes to ~7)
Dimensions 13″ W × 58″ H (Installed)
Connections Connections 1” male threaded 90s with bypass valve
Media Included 250 lbs Calcite (5 × 50lb bags)
Maintenance Refill every 18-36 months based on water usage
Requirements None (No Drain / No Electric)
Hardness Impact +4–6 Grains/Gallon
Warranty 10 Yr Tank / 5 Yr Valve

Certified Performance

System utilizing proven Vortech™ technology.

Assembled in USA

Assembled in USA

Designed, engineered, and made in the USA.

Control Valve Head

5-Year Warranty

On the premium Clack control valve.

Media Tank

10-Year Warranty

On the structural media tank.

Tech Support

Call or Text 443-277-2204
7 Days/Week • 8am–5pm EST

Order Processing & Prep

Orders are verified and sent to our Ohio facility. Your system is picked, palletized, and shrink-wrapped in secure, damage-resistant packaging.

Freight Shipment

In stock and typically ships within 2–4 business days. We use heavy freight carriers (usually RNL). You will receive a tracking number via email.

Transit Time

Free shipping to the lower 48 states.
• 1–2 business days (East Coast/Midwest)
• 4–5 business days (West Coast)

Liftgate Delivery

Due to weight (~400 lbs), delivery is via liftgate truck to your driveway or curb.

Why isn't this 1-day shipping like Amazon?

Unlike a standard Amazon package, this package weighs roughly 400 lbs and gets delivered on a pallet. It requires specialized pallet handling, tractor-trailers, and liftgates to ensure it arrives safely. We prioritize damage-free delivery over speed.


Video Guides

Aidan has 32 years of industry experience.


1,200+ Customer Installs

Real photos from homeowners who did it themselves.

Well made, simple install.
"Well made, simple install."
- Nicolas C.
Easy to install and amazing customer service.
"Easy to install and amazing customer service."
- Darren P.
Install was straightforward and fairly easy.
"Install was straightforward and fairly easy."
- David B.
Very straight forward & easy for any DIYer.
"Very straight forward & easy for any DIYer."
- Norbert C.

The Most Reliable Fix for Acidic Well Water

1200+ satisfied homeowners. NSF tested & certified. Money-back guarantee.

Eliminate blue-green stains and protect your copper pipes from corrosion with the 2.5 CF Acid Neutralizer. Designed specifically for well water with low pH (4.0 - 6.9), this system uses natural calcite media to gently neutralize acidity on contact. Unlike undersized units found in big box stores, our massive 2.5 cubic foot capacity ensures consistent pH correction and requires maintenance only once every 18-36 months. Featuring the industry-standard Clack® control valve and advanced Vortech® tank technology, you get professional-grade performance and flow rates without the price tag.
No Electricity
No Backwashing
Low Maintenance
Mid Atlantic Water Trust Logos
Feature Our System Others
Media Capacity 2.5 Cubic Feet (Massive) 1.0 - 1.5 Cubic Feet
Maintenance Interval Refill Every 18-36 Months Every 3-6 Months
Control Valve Professional Clack® Valve Cheap Proprietary Plastic
Tank Technology Vortech® (No Gravel Needed) Old Style Gravel Bed
Manufacturing Origin Made in USA Often Imported
Chemicals Required None (Natural Calcite) Some use hazardous chemicals
Plumbing Protection Stops Pinhole Leaks Instantly Variable / Less Contact Time
Tech Support Lifetime Expert Video/Phone Limited or No Support
Warranty 10 Years Tank / 5 Years Valve 1-3 Years Limited
Media Capacity
✅ Us 2.5 Cubic Feet (Massive)
❌ Them 1.0 - 1.5 Cubic Feet
Maintenance Interval
✅ Us Refill Every 18-36 Months
❌ Them Every 3-6 Months
Control Valve
✅ Us Professional Clack® Valve
❌ Them Cheap Proprietary Plastic
Tank Technology
✅ Us Vortech® (No Gravel Needed)
❌ Them Old Style Gravel Bed
Manufacturing Origin
✅ Us Made in USA
❌ Them Often Imported
Chemicals Required
✅ Us None (Natural Calcite)
❌ Them Some use hazardous chemicals
Plumbing Protection
✅ Us Stops Pinhole Leaks Instantly
❌ Them Variable / Less Contact Time
Tech Support
✅ Us Lifetime Expert Video/Phone
❌ Them Limited or No Support
Warranty
✅ Us 10 Years Tank / 5 Years Valve
❌ Them 1-3 Years Limited
Support Specialist

Lifetime Tech Support

Buy with confidence knowing you aren't alone. Access a certified water specialist who actually designed your system. Available 7 days a week.

📞 Call Us (800) 460-5810
✉️ Email Support support@midatlanticwater.net
🕒 Live Hours 8AM - 5PM EST

Frequently Asked Questions

No, about 80% of our customers install this system themselves. If you are comfortable cutting pipe and using a wrench, you can do this. The system comes with a bypass valve and threaded connections that make it straightforward. We also provide a comprehensive video guide and have tech support available 7 days a week if you get stuck.

Because of our larger 2.5 cubic foot tank size, you only need to add media every 18 to 36 months for the average household (3-4 people). Smaller units from big box stores often require refilling every 3-6 months. We include a fill funnel with your order to make the refill process mess-free.

Not noticeably. The "Vortech" tank technology we use actually improves flow rates compared to traditional gravel-bed tanks. The system is rated for 17 GPM (Gallons Per Minute), which is sufficient for most homes with up to 3 bathrooms running simultaneously.

The unit ships via freight truck with liftgate service. The driver will lower the pallet to your driveway or curb. You are responsible for disposing of the wooden pallet and cardboard packaging. The tank itself is lightweight when empty (~25 lbs) and easy to move into your garage or basement before filling it with the included media.

No, it's a non-backwashing head. It doesn't need electricity or a backwash line.

Customer Reviews
4.9 Based on 282 Reviews
5 ★
94% 
265
4 ★
6% 
16
3 ★
0% 
0
2 ★
0% 
0
1 ★
0% 
1
Customer Photos
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A
01/21/2025
Anonymous
United States United States

Installation of an Acid Neutralizer

I was pleased at how quickly the tank arrived. My plumber had only two questions for Mid Atlantic Water. Installation went smoothly. Before installation, my average Ph was 6.20. After installation, so far, the Ph has been 7.99, which is higher than I expected. Hopefully, this new acid neutralizer tank will arrest the acid corrosion from my well water that had caused leaks to three PEX brass joints,

CR
01/02/2025
Christopher R.
United States United States

Couldn’t be better!

I’ll start by saying that the customer service offered my Mid Atlantic Water was outstanding! I had multiple questions answered from prepurchase through installation. I installed myself fairly easily and it 100% fixed my acidic well water issue. It took my 5.5ph well water to 7.2 using the 2.5cf non backwashing (with no flow mag). It took my tds from 25 to 135 so no worries there either. Thank you so much for all of the help and delivering a product that works!

SJ
12/29/2024
Shawn J.
United States United States

Low PH fixed

I have nothing but great things to say about this company. I’ve called and emailed and each time was treated with professionalism by the owner himself. That’s right, the owner, answered the phone and even responded to an email on a Saturday. Easy installation and raised my PH from 5.5 to 7.5!! Super pleased and highly recommended!!

A
12/09/2024
Anonymous
United States United States
I recommend this product

Just What We Needed

Very good. Pretty easy to install if you have all parts/adapters on hand. Finally, we can drink our water from the tap!

A
12/01/2024
Anonymous
United States United States
I recommend this product

Wish I did this sooner!

Piece of cake, Thanks for the help folks.

MD
12/01/2024
Michael D.
United States United States
I recommend this product

Pricey, but worked as expected

My column is in a corner, and tall enough to be awkward to refill. This funnel fit well, stayed in place and had a big enough throat to fill the column quickly.

DM
11/27/2024
Daniel M.
United States United States
I recommend this product

Best Option East of the Mississippi

Purchased this Clack 2.5 because it has a side fill port (a dream option for someone who had to disassemble entire head abomination just to add medium in old tank). Bought from Mid Atlantic because they have so many useful videos online about water treatment tanks and installation. Whole operation was a breeze; I ordered on a Sunday night, shipping from multiple states away -- arrived within a few days & everything was installed (by me, alone) and up and running by the following Saturday morning (6 days total). The calcite treatment medium sold by Mid Atlantic is far better than the dusty stuff available from my local plumbing supply. 5-Star ***** Review from me! Dan @ Cape Cod

A
11/22/2024
Anonymous
United States United States
I recommend this product

Acid neutralizer

Shipment, installation and everything went smoothly and is going perfectly

A
10/21/2024
Anonymous
United States United States
I recommend this product

Acid Neutralizer

Product was delivered promptly and installed easily. Nice not to worry about future damage to the copper pipes. Mid Atlantic answers the phone when you call.

CR
09/13/2024
Cecilia R.
United States United States
I recommend this product

acid neutralizer tank

The tank works well, but it is hard to find fittings to plumb it in. Home depot and lowes in our area did not have the fittings, and I finally found them at a plumbing store located over an hour away. Please send some fitting to hook up to pex or copper, not these garden hose fittings.

Clack 2.5 Cubic Foot Non Backwashing Acid Neutralizer
Clack 2.5 Cubic Foot N... $1,495.00