Complete 1.5 Cubic Foot Backwashing Acid Neutralizer System
✓1.5 cubic foot Vortech media tank (10" x 54") - total height with valve 62", translucent almond color
✓Fleck 2510SXT digital control valve - metered backwashing with programmable cycle timing
✓3 x 50 lb bags of calcite media (150 lbs total) - naturally raises pH to neutral 7.0
✓24V transformer - plugs into any standard outlet, connects to the valve head
✓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
Up to 10 GPM flow rate capacity. Requires one electrical outlet and a drain line for the backwash cycle. Drain tubing is not included - any 1/2 inch flexible tubing from your local hardware store works. Don't need backwashing? See our non-backwashing acid neutralizers (no electricity, no drain).
System Model
Fleck 2510SXT 1.5 cu ft Vortech Backwashing
Control Valve
Fleck 2510SXT Digital Metered by Pentair
Flow Rate Capacity
Up to 10 GPM
Capacity
1-2 Baths (1-3 People)
pH Treatment
6.0-6.9 (Neutralizes to ~7.0)
Dimensions
10" x 54" x 62" H (with valve)
Connections
1" male threaded with bypass valve
Media Included
150 lbs Calcite (3 x 50lb bags)
Backwash Cycle
Schedule set in the valve, about 70 gallons per cycle
Maintenance
Add calcite about every 18-24 months
Requirements
120V outlet + drain line
Hardness Impact
+4-6 Grains/Gallon
Warranty
5 Yr Valve / 10 Yr Tank
⚡
Standard plumbing install with two additional requirements: a nearby electrical outlet (24V transformer included) and a drain line for the backwash cycle.
🔌 Electrical
Standard 120V outlet within 6 feet. Included 24V transformer plugs in and connects to the valve head.
🚰 Drain Line
1/2" tubing from the valve drain port to a floor drain, utility sink, or daylight. Tubing is not included - pick it up at any hardware store.
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 a 1/2" drain line (not included) 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 (the days between backwashes; Aidan will give your plumber the setting for your water)
Open the bypass slowly, then switch to service position. Run water for 10-15 minutes to flush calcite fines
Backwash timing: Set the backwash to run at 2:00 AM when no water is being used. Each cycle takes about 30-45 minutes. If you also have a water softener, stagger the regeneration times so they don't overlap.
Need help? Call 800-460-5810 or text Aidan at 443-277-2204 for sizing questions, installation guidance, and programming help. We walk you through the Fleck 2510SXT setup.
✨
Self-cleaning system. The Fleck 2510SXT automatically backwashes on your set schedule, flushing sediment and redistributing the calcite bed. Your only job is adding calcite every 18-36 months, depending on tank size, pH and water usage.
Maintenance Schedule
AutomaticBackwash cycle runs on schedule. The days between backwashes are set on the 2510SXT controller (Day Override). Each cycle runs for 30-45 minutes (typically at 2 AM), using about 70 gallons on the 1.5 cubic foot tank and about 140 gallons on the 2.0 and 2.5. This prevents channeling, removes trapped sediment, and keeps the calcite bed loose and effective.
Every 18-36 MonthsRefill calcite media. Calcite dissolves as it neutralizes acid, so the media level drops over time. Check the level once a year with a flashlight against the back of the tank. When it gets below the halfway mark, add calcite using the included fill funnel. Refill frequency depends on your pH level and water usage.
YearlyCheck 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 MonthsReplace sediment pre-filter cartridge (if using a Big Blue upstream). A sediment filter protects the calcite bed and extends media life.
Pro tip: The Fleck 2510SXT has a metered backwash option that triggers based on water usage rather than a fixed timer. Call Aidan at 800-460-5810 if you want help optimizing your backwash settings for your water chemistry.
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.
NSF/ANSI 61 Components
Certified components in a Vortech™ tank.
Made in USA
Clack valve and Vortech tank made in the USA.
5-Year Warranty
On the control valve.
10-Year Warranty
On the structural media tank.
Tech Support
Call 800-460-5810 or text Aidan at 443-277-2204 7 Days/Week • 8 AM to 5 PM ET
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 systems typically ship within 3 to 5 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 the weight, 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 shipment is heavy 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.
"I never give reviews but this product was 5 stars from start to finish. So refreshing to deal with a product and company that lives up to what they advertise." ★★★★★
Jack S, Maryland
"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
"Easy installation, excellent water flow, wish I had bought this 20 years ago. - Feb 7th 2026" ★★★★★
Joe H, Pennsylvania
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
"Well made, simple install."
- Nicolas C.
"Easy to install and amazing customer service."
- Darren P.
"Install was straightforward and fairly easy."
- Clayton B.
"Very straight forward & easy for any DIYer."
- Norbert C.
The 10 GPM Backwashing Acid Neutralizer for Smaller Homes
The 1.5 cubic foot Fleck 2510SXT backwashing acid neutralizer is the compact option in our backwashing line, sized for 1-3 people with 1-2 bathrooms. The automated backwash cycle flushes sediment and loosens the calcite bed every few days, keeping the media clean and preventing channeling. Flow rate capacity is up to 10 GPM.
For most homes, Aidan recommends the 2.5 cubic foot system. It delivers 50% more flow (15 GPM vs 10 GPM), holds 2 more bags of calcite for longer refill intervals, and covers larger households without restrictions. The price difference is $200. Not sure which size? Call Aidan at 800-460-5810 with your water test results.
✔Self-Cleaning Backwash
✔Fleck 2510SXT Digital
✔NSF Certified
Feature
Our System
Others
Maintenance Interval
✔
Add Calcite Every 18-36 Months
Every 12-24 Months
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 the Corrosion Behind Pinhole Leaks
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
Maintenance Interval
✅ Us Add Calcite Every 18-36 Months
❌ ThemEvery 12-24 Months
Tank Technology
✅ UsVortech® (No Gravel Needed)
❌ ThemOld Style Gravel Bed
Manufacturing Origin
✅ UsMade in USA
❌ ThemOften Imported
Chemicals Required
✅ UsNone (Natural Calcite)
❌ ThemSome use hazardous chemicals
Plumbing Protection
✅ UsStops the Corrosion Behind Pinhole Leaks
❌ ThemVariable / Less Contact Time
Tech Support
✅ UsLifetime Expert Video/Phone
❌ ThemLimited or No Support
Warranty
✅ Us10 Years Tank / 5 Years Valve
❌ Them1-3 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.
📞 Call Us800-460-5810
✉️ Email Supportsupport@midatlanticwater.net
🕒 Live Hours8AM - 5PM EST
Frequently Asked Questions
We recommend installation by a licensed plumber, and Aidan supports your plumber by phone at 800-460-5810, 7 days a week. A non-backwashing unit typically takes a plumber about 2 hours; a backwashing unit also needs a drain line (drain tubing is not included) and a standard outlet. The bypass valve comes already installed on the control valve, and our install video walks through every step.
Check the level once a year: hold a bright flashlight behind the tank and look for the shadow of the calcite. When it is about halfway down, add calcite with the included funnel, filling to about 10 inches below the fill port. How long that takes depends on the tank size: about every 6 to 12 months on a 1.0 cubic foot tank, 18 to 24 on a 1.5, 24 to 30 on a 2.0 and 30 to 36 on a 2.5. A calcite and FloMag blend does not change it. You never replace the calcite; it dissolves as it works.
Not noticeably. The Vortech tank has no gravel bed, and its distributor plate spans the whole tank. Pressure drop is not something our customers call about. Rated flow depends on the size (the 2.5 cubic foot non-backwashing tank is rated up to 17 GPM), and this model's number is in the specifications tab above.
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.
It depends on the model. The non-backwashing models (Clack C1190 head) need no electricity and no drain line. The backwashing models (Fleck 5600SXT and 2510SXT valves) plug into a standard outlet and need a drain line for the backwash; drain tubing is not included.
Customer Reviews
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Customer Photos
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Fleck 2510SXT 1.5 Cubi...$1,695.00
Investing in The Right System
Cheap backwashing neutralizers look identical online, but they cut corners where it matters.
Found this neutralizer cheaper somewhere else?
Cheap backwashing acid neutralizers sold online for $800-1,000 typically use:
Low-cost control valves (not genuine Fleck) that fail within 2-3 years, requiring a $400-600 replacement valve and a plumber visit.
Standard gravel-bed tanks instead of Vortech, which are heavier, harder to service, and more prone to channeling.
Incomplete calcite fill (sometimes only 50-100 lbs in a 2.5 cu ft tank) so the system underperforms from day one.
No bypass valve, no fill funnel, and no technical support. You are on your own if something goes wrong.
The True Cost Over Time
Cheap Alternative
$900 Upfront
❌Lifespan: Fails in 3-4 years
❌Result: Frequent repairs, poor water quality, leaks
❌Support: None
~ $0.62 / Day
Best Long-Term Value
Our Premium System
$1,895 Upfront
✅Lifespan: Lasts 15+ years with routine media replacement
✅Result: Done right the first time, peace of mind
✅Support: Lifetime USA Support
~ $0.52 / Day
Do it right the first time. By investing a little more upfront, you prevent early replacement costs, plumbing repair headaches, and the frustration of poor water quality. This is without a doubt the best long-term option for your home.
What You're Actually Paying For
Genuine Fleck 2510SXT digital metered valve by Pentair, the industry standard for residential backwashing systems. 5-year valve warranty.
Vortech tank (gravel-free design) that is lighter, easier to service, and provides better flow distribution through the calcite bed.
Full calcite fill included (150-250 lbs depending on size). The system is ready to treat your water from day one.
Bypass valve, fill funnel, and 24V transformer all included. Plus lifetime phone support from Aidan at 800-460-5810.
Contact Us
800-460-5810
We're here to help.
1-Year Risk-Free Guarantee
Proven in Thousands of Real Homes
The Policy:
If it doesn’t fix your acidic water, we’ll refund you. No returns required.
After 30 years of testing acidic water solutions, the data led us to this exact system. With a track record of 1,000+ successful installations, we have the evidence to offer a true risk-free guarantee based on results, rather than an empty marketing gimmick.
The Industry "Return Policy" Trap
+
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.
How Our Real Guarantee Works
1
It Fails to Fix the Acidic Water
If the system does not neutralize your pH as promised.
2
Aidan Troubleshoots With You
You'll work directly with the expert who designed your system to ensure it's set up correctly for your specific well chemistry.
You Get Refunded
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.