Fleck 2510SXT 2.5 Cubic Foot Vortech (13x54) Backwashing Acid Neutralizer
Fleck 2510SXT 2.5 Cubic Foot Vortech (13x54) Backwashing Acid Neutralizer
Complete 2.5 Cubic Foot Backwashing Acid Neutralizer System
- ✓ 2.5 cubic foot Vortech media tank (13" x 54") - total height with valve 62", translucent almond color
- ✓ Fleck 2510SXT digital control valve - metered backwashing with programmable cycle timing
- ✓ 5 x 50 lb bags of calcite media (250 lbs total) - naturally raises pH to neutral 7.0
- ✓ 24V transformer - plugs into any standard outlet, connects to the valve head
- ✓ Drain tubing - 3/8" line for the backwash discharge
- ✓ Bypass valve - isolate the tank for service without shutting off water
- ✓ Fill funnel - add calcite without removing the valve head
- ✓ 1" male threaded connections - easily reduced to 3/4"
- ✓ Free shipping to all lower 48 states
| System Model | Fleck 2510SXT 2.5 cu ft Vortech Backwashing |
|---|---|
| Control Valve | Fleck 2510SXT Digital Metered by Pentair |
| Flow Rate Capacity | Up to 15 GPM |
| Capacity | 3-5 Baths (3-8 People) |
| pH Treatment | 5.5-6.9 (Neutralizes to ~7.0) |
| Dimensions | 13" x 54" x 62" H (with valve) |
| Connections | 1" male threaded with bypass valve |
| Media Included | 250 lbs Calcite (5 x 50lb bags) |
| Backwash Cycle | Every 3-5 days, 90-120 gallons per cycle |
| Maintenance | Refill calcite every 6-12 months |
| Requirements | 120V outlet + drain line |
| Hardness Impact | +4-6 Grains/Gallon |
| Warranty | 5 Yr Valve / 10 Yr Tank |
Installation Steps
- Shut off the main water supply and relieve pressure at a nearby faucet
- Mount the system on the main water line after the pressure tank. Water enters the inlet side of the valve and exits the outlet to the house
- Connect the bypass valve (included) for service isolation
- Route the 3/8" drain line from the valve drain port to a floor drain, utility sink, or outside
- Plug the 24V transformer into a standard outlet and connect to the valve head
- Set the current time of day and backwash schedule on the Fleck 2510SXT controller (every 3-5 days is typical)
- Open the bypass slowly, then switch to service position. Run water for 10-15 minutes to flush calcite fines
Recommended System Order
Maintenance Schedule
- Automatic Backwash cycle runs on schedule. Set every 3-5 days on the 2510SXT controller. Each cycle runs for 30-45 minutes (typically at 2 AM), using 60-120 gallons depending on tank size. This prevents channeling, removes trapped sediment, and keeps the calcite bed loose and effective.
- Every 6-12 Months Refill calcite media. Calcite dissolves as it neutralizes acid, so the media level drops over time. Check the level through the fill port every few months. When it gets below the halfway mark, add calcite using the included fill funnel. Refill frequency depends on your pH level and water usage.
- Yearly Check the drain line. Make sure the backwash drain line is clear and flowing freely. A clogged drain line can cause the backwash cycle to fail and may damage the valve.
- Every 3-6 Months Replace sediment pre-filter cartridge (if using a Big Blue upstream). A sediment filter protects the calcite bed and extends media life.
Replacement Calcite Media
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.
Certified Performance
System utilizing proven Vortech™ technology.
Assembled in USA
Designed, engineered, and made in the USA.
5-Year Warranty
On the premium Clack control valve.
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.
- 📘Acid Neutralizers: The Complete Guide→
- 🏆Best Acid Neutralizer for Well Water (2026 Buyer's Guide)→
- 📐Acid Neutralizer Sizing Guide: What Size Do You Need?→
- ⚖️Backwashing vs. Non-Backwashing: Which Do You Need?→
- 💰Acid Neutralizer Cost: Full Price Breakdown→
- 🔧How to Install an Acid Neutralizer (Complete DIY Guide)→
- 🔄How to Service Your Acid Neutralizer (Step-by-Step)→
- 🧪Calcite vs. Corosex (FloMag): Which Media Do You Need?→
What homeowners are saying
Video Guides
Aidan has 32 years of industry experience.
⚙️ Technical Overview
📄 Installation Instructions
📦 How does it ship?
↔ Sizing Guide
1,200+ Customer Installs
Real installations from real homeowners
The 15 GPM Backwashing Acid Neutralizer for Most Homes
1,200+ satisfied homeowners. NSF tested & certified. Money-back guarantee.
| Feature | Our System | Others |
|---|---|---|
| Media Capacity | ✔ 2.5 Cubic Feet (Massive) | 1.0 - 1.5 Cubic Feet |
| Maintenance Interval | ✔ Refill Every 6-12 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 |
✔ 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.
Frequently Asked Questions
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- Aidan
United StatesWish I did this sooner!
Piece of cake, Thanks for the help folks.
United StatesPricey, 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.
United StatesBest 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
United StatesAcid neutralizer
Shipment, installation and everything went smoothly and is going perfectly
United StatesAcid 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.
United Statesacid 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.
United StatesOutstanding Product, Support, and Service
Mid=Atlantic Water gave me excellent advice & help in choosing the right product for my high acid water treatment needs and referred me to a very reputable and highly competent installer. I have had very few home projects completed to my total satisfaction (I am a bit picky), but this one turned out perfectly. Product, shipping, installation and cost were all five star!
United StatesEasy to install and amazing customer service
This system started working with in hours of being installed bringing the PH up to safe levels and was able to install myself with no problems.
United StatesDoes the Job
Very easy to install. My water was testing around 5.5ph. Once installed and running the water was around 7.5ph which is perfect. Quick shipping too.
United StatesClack 1.5 Cubic Foot (10x54) Vortech Tank Non Backwashing Acid Neutralizer
Shipped with no damage. This unit is well-designed and was easy to install and is functioning well. Highly recommended!
1-Year Risk-Free Guarantee
After 30 years of testing acidic water solutions, the data led us to this exact system. With a track record of 1,000+ successful homeowner installations (DIY or Licensed Plumbers), we have the evidence to offer a true risk-free guarantee based on results, rather than an empty marketing gimmick.
Most water filter companies offer standard "Money Back Guarantees" or return policies fully knowing that you aren't going to drain, package, and pay heavy freight costs to ship a 600lb wet tank back to them. It's an illusion of safety. Our guarantee requires zero return shipping.
If the system does not neutralize your pH as promised.
You'll work directly with the expert who designed your system to ensure it's set up correctly for your specific well chemistry.
If it still doesn't solve the problem, we refund you entirely.
No return shipping required.
Not sure if this is the perfect system? Don't guess. If you aren't 100% sure this is the correct size for your well, text me your water test or call me directly. I'll personally review it.
We're still gathering reviews for this one.
Honest answer: this product is too new for individual reviews to exist yet. So instead of pretending, here is what 10,000+ homeowners say about the rest of the systems we sell, same team, same support, same 29-year track record you'll get with this product.
"I had well water with over 20 ppm ferrous and 7 ppm of ferric iron, plus manganese and some sulfur. Local water companies rejected me, said they couldn't help. I purchased two Fleck 2.5 cu. ft. 2510AIO iron filter tanks with Katalox-Light. Problem solved."
"New house, brass fittings on my Pex were all corroding. Tested the water, acidic at 5.5. Found Mid Atlantic Water YouTube videos which were very helpful, ordered the non-back washing 2.5. Easy install, water tests great now."
"Straight forward installation. In, out, and the drain. Ran a back wash cycle then put it online and it works GREAT. Cleaned out the iron and raised the pH to 7.5. Culligan tried to sell me something twice the price."
"Three contractors and two other suppliers reviewed my well report. Quotes ranged from $5,000 to $10,000. Then I found Mid Atlantic. Aidan reviewed the report and recommended a complete system. Same equipment, fraction of the cost, and the support was real."
"Easy, bullet-proof installation. No moving parts. Raised my pH from 6.8 to a perfect 7.6. I had previously installed the same unit in my daughter's water system. Her pH was 5.2. Following Aidan's videos, both installs went smoothly."
"Super easy install. Shouldn't have to service it for approximately 24-36 months based on my water usage. Tank is solid, fittings are clean, no leaks. Exactly what was advertised."
Want a real human to walk you through whether this is right for you?