Tannin 5600 SXT Metered 48,000 Grain
$1079 price checked August 2026
If you have well water with tea colored tannins and hardness, this system is the right choice to price-check.
Where the Tannin 5600 SXT Fits
The Tannin 5600 SXT Metered 48,000 Grain Water Softener is for well-water owners who need to remove both tannins and hardness, providing a 48,000-grain capacity to handle high-demand households.
Tea-colored water and mineral buildup on fixtures occur when a home lacks a system to strip tannins and calcium from the supply. These contaminants can damage appliances and leave a persistent film on every surface in the house.
The Tannin 5600 SXT provides a solution by removing both tannins and hardness from your water. It features a 48,000-grain capacity, which exceeds the 32,000-grain threshold required to service a standard 3-bedroom household with moderate hardness.
We evaluated the grain water softener options we compared to select this model based on its specific capacity and media capabilities. This review is for budget-conscious shoppers who need to treat well water with high mineral and organic content.
How Green Writer picked: we started from the 53 most-reviewed grain water softener listings in our retail dataset, removed duplicates, accessories and off-category products, and 28 qualified. This product is one of 15 from that pool chosen for a full review. Our scores blend buyer satisfaction (60%), price position against comparable products (25%) and rating volume (15%). Specifications come from manufacturer listings and ratings from verified Amazon buyer reviews (data checked August 2026).
The Short Answer on the Tannin 5600 SXT
Best for: you have a well water system with high tannin content and hardness that requires a high-capacity treatment solution.
The Tannin 5600 SXT is a strong choice at the $1079 price point.
- Pro: The 48,000 grain capacity exceeds the 32,000 grain threshold required for standard 3-bedroom households.
- Pro: It features a 14 GPM flow rate to handle multiple simultaneous fixtures without pressure drops.
- Pro: The unit ships with media pre-loaded in the tank.
- Con: The $1079 price point is significantly higher than entry-level systems, which may exceed a strict budget.
- Con: The 48,000 grain capacity falls short of the 72,000 grain threshold required for large estates or high-flow irrigation.
Don’t buy this if: your property requires a 72,000 grain capacity to service high-flow irrigation or a large estate.
Price assessment: The $1079 price is fair given the high capacity and the inclusion of pre-loaded media.
Green Writer score: 5.8/10 (data-driven – see “How we picked” above)
If you are new to water treatment, view our guide to the best water softener for beginners.
The Specifications That Matter
| Capacity | 48,000 Grains |
| Flow Rate | 14 Gallons Per Minute |
| Media Type | Tannin resin |
| Weight | 87 pounds |
| Dimensions | 10 x 10 x 54 inches |
| Included Components | With tannin resin pre-loaded |
The 48,000 Grain capacity exceeds the 32,000 Grain threshold required to service a standard 3-bedroom household with moderate hardness.
Where this sits in the buyer data: Among the 25 products screened for this category, this one’s 4.2 rating places it #15, on 6 ratings – below the 12-rating median of that group, so treat the average as less settled than its comparables. On price it undercuts 4 of them.
Before You Buy: Tannin 5600 SXT Checklist
The first thing to check is the total hardness and tannin levels in your water supply to ensure a 48,000 grain capacity meets your household’s specific needs.
- ✅ Confirm your household needs—48,000 Grains
- ✅ Verify your flow rate—14 Gallons Per Minute
- ✅ Measure your installation area—Tannin 5600 SXT footprint
- ✅ Budget for the unit—around $1,079
- ✅ Confirm well water source—Tannin and hardness removal
You should not buy the Tannin 5600 SXT if your household requires a high-flow irrigation setup, as the 14 GPM flow rate may not support multiple high-demand zones simultaneously.
Performance: What the Specs Deliver
Tannin and Hardness Removal
Tannin and hardness removal with the Tannin 5600 SXT allows you to eliminate tea-colored staining on laundry and fixtures. Because the system removes all tannins and hardness from the water, you can prevent the permanent mineral buildup and organic staining that typically occurs in high-tannin environments.
The 48,000 grain capacity of the Tannin 5600 SXT provides a significant buffer over the 32,000 grain threshold required for a standard 3-bedroom household. This capacity ensures the resin can handle consistent water usage while maintaining the filtration levels necessary to keep your fixtures clear of deposits.
Pre-Loaded Media Installation
Pre-loaded media installation on the Tannin 5600 SXT means the unit arrives with the necessary resin already in the tank. This allows you to bypass the manual process of sourcing and pouring media, which simplifies the initial setup of the water softener.
While the Tannin 5600 SXT ships ready to use, you should confirm your local plumbing requirements with a qualified installer before beginning. A professional can ensure the unit is integrated correctly into your home’s water lines to meet local safety standards.
Well Water Compatibility
Well water compatibility for the Tannin 5600 SXT is designed for systems dealing with high hardness and organic tannins. The specific media in this unit targets the organic matter that causes water to appear discolored, making it suitable for well owners who need to treat both mineral scale and color simultaneously.
The Tannin 5600 SXT supports a flow rate of 14 Gallons Per Minute. This flow rate allows you to run multiple fixtures or appliances at once without the pressure drops often associated with lower-capacity systems.
How the Tannin 5600 SXT Compares to Alternatives
The Tannin 5600 SXT offers a higher capacity of 48,000 Grains compared to the Genesis 2 options, which only reach 24,000 Grains.
- The Tannin 5600 SXT costs $30 more than the AFW Filters Fleck 5600SXT.
- The Tannin 5600 SXT provides 48,000 Grains of capacity, while the EcoPure EP42 provides 42,000 Grains.
- The Tannin 5600 SXT is $166.43 more than the EcoPure EP42.
- The Tannin 5600 SXT costs $178 less than the Genesis 2 Premier.
- The Tannin 5600 SXT has a 4.2 rating, which is higher than the 3.8 rating of the Genesis 2 High Efficiency.
- The Tannin 5600 SXT costs $220 more than the Fleck 5600sxt Whole House Water Softener System.
If you need the lowest price and do not require 48,000 Grains of capacity, the Fleck 5600sxt Whole House Water Softener System is the better pick at $859.
The programming software for the Tannin 5600 SXT includes phone support on Monday through Friday for programming and installation questions. You should confirm with the manufacturer if the interface requires a professional technician or if the phone support covers the full configuration for a non-technical user.
For a different valve configuration, see our full Fleck 5600 Valve review.
You might also consider how the Aquasure Harmony Series performs for higher capacity needs.
The Tannin 5600 SXT: Remaining Questions
How often will I actually have to regenerate the Tannin 5600 SXT Metered 48,000 Grain if I have high tannin levels?
The regeneration frequency depends on your specific water hardness and tannin concentration, as the 48,000 grain capacity determines how much water is treated before a cycle triggers. You should check your local water report to see if your levels exceed standard household requirements to estimate salt consumption and water waste.
Does the Tannin 5600 SXT Metered 48,000 Grain come with the salt and media already inside?
The Tannin 5600 SXT ships with the media pre-loaded in the tank, which simplifies the setup process for the user. You will still need to source the salt supply separately to maintain the system’s operation.
Is the Tannin 5600 SXT Metered 48,000 Grain worth the $1,079 price tag?
Whether this unit fits your budget depends on your household’s specific water needs and the cost of local water treatment. The 48,000 grain capacity sits between the 32,000 grain standard for moderate households and the 72,000 grain threshold for large estates.
Does the Tannin 5600 SXT Metered 48,000 Grain handle high flow rates?
Yes, the unit supports a flow rate of 14 Gallons Per Minute. This capacity allows the system to handle multiple simultaneous fixtures without the pressure drops often seen in lower-rated models.
Is the Tannin 5600 SXT Right for You?
The Tannin 5600 SXT suits 5 kinds of buyer and is the wrong choice for 3 jobs, listed below with the reason for each.
Who the Tannin 5600 SXT is for, and what it does well
Who the Tannin 5600 SXT suits
- Homeowners on well water — the system specifically removes tannins that cause tea-colored water
- DIY homeowners — the pre-loaded media and 1-2 hour installation time make it accessible for non-professionals
- Large households with high water usage — the 48,000 grain capacity supports high-volume demand
- Rural property owners — the specific ability to treat both hardness and tannins is ideal for untreated well sources
- Property managers of rental homes — the pre-loaded tank simplifies the setup process for quick deployment
What the Tannin 5600 SXT handles well
- Removing tea-colored water — the specialized tannin removal capability
- Preventing scale buildup in appliances — the hardness removal feature
- High-flow irrigation or outdoor cleaning — the 14 gallons per minute flow rate
- Fast residential installation — the pre-loaded media and 1-2 hour setup time
- Large scale water softening — the 48,000 grain capacity
What the Tannin 5600 SXT is the wrong choice for
- Commercial industrial complexes — the 14 GPM flow rate may be insufficient for high-demand industrial lines
- Extreme high-volume agricultural irrigation — the 48,000 grain capacity may be exceeded by massive farm requirements
- Professional plumbing contractors seeking rapid multi-unit installs — the 1-2 hour DIY-focused installation may be too slow for commercial workflows
What to budget alongside the Tannin 5600 SXT, and what to skip
Worth buying at the same time
- Plumbing bypass valve — required to connect the unit to the existing water line
- Water testing kit — needed to measure initial hardness and tannin levels to program the unit
- Salt supply — required as the consumable for the grain water softener to function
- Pressure gauge — needed to monitor the system’s performance during the 1-2 hour installation
- Drainage pipe — required to direct the backwash and regeneration water away from the unit
What you can skip
- Pre-loaded media bags — the product already ships with the media pre-loaded in the tank
- Professional installation service — the 1-2 hour DIY instructions and phone support make it doable without a contractor
- Basic hardness filter — the unit already handles both hardness and tannins in one system
Budget-conscious homeowners should view the best whole house water softener for large homes under $1000.
Explore different methods by viewing the alternatives to a standard water softener.
Where to Buy the Tannin 5600 SXT
These retailers sell Grain Water Softener generally – we do not track which of them has this particular model in stock, so check availability and the current price with the retailer before making a trip.
- Watersoften.com (online only) — specialist retailer with technical expertise and custom configurations
- Ferguson (online and physical stores) — professional plumbing supply for trade and contractor accounts
- Home Depot (online and physical stores) — wide selection of major brands and in-store pickup
- Lowe’s (online and physical stores) — broad inventory of residential systems and local installation services
- Amazon (online only) — extensive variety of brands and customer reviews
- Build.com (online only) — specialized plumbing supply with trade account options
Final Verdict on the Tannin 5600 SXT
If you have a well water supply with high tannin levels and significant hardness, the Tannin 5600 SXT Metered 48,000 Grain is the correct choice for around $1,079.
The Tannin 5600 SXT provides a 48,000 grain capacity, which exceeds the 32,000 grain threshold required to service a standard 3-bedroom household with moderate hardness.
Skip it if: You require a system capable of handling high-flow irrigation or large estates, as the 14 GPM flow rate sits below the 72,000 grain threshold required for those high-demand applications.
The rest of our Grain Water Softener guides
- The Grain Water Softeners That Work Best for Hard Water
- Which Whole House Water Softener Is Best for Small Spaces?
- Best Water Softeners for High Flow Households
- Water Softeners with Sediment Filters Compared
- Choosing the Best Water Softener with Carbon Filter
- The Grain Water Softeners That Work Best for Beginners