What it does for your water
The Fleck 5600SXT 48,000-Grain Water Softener is a whole-house softener rated at 48,000 grains on a Fleck 5600 SXT control valve.
Run at an efficient salt setting, its 1.5 cu ft of resin gives about 36,000 grains per regeneration rather than the full rating: enough for up to 4 people on 15 grains-per-gallon water regenerating weekly, or 2 on 25 grains per gallon. Check it against your hardness.
The Fleck 5600 SXT head is one of the most widely serviced valves; seal kits, pistons, boards and meters that name it are in the valve parts lookup.
The listing also gives features listed Programmable; mounting Freestanding; power Manual/Gravity-fed; capacity stated as 1.5 cu ft; model 5600; material Polypropylene.
The listing gives dimensions of 15 in (L) x 28 in (W) x 62 in (H), a shipping weight of 53 lb and complete system in the box.
Is it the right unit for your house?
Choose it when
- Up to 4 people on 15 gpg water
- Replacing an older softener
Pass on it when
- More than 2 people on 25 gpg water
- Iron above about 5 ppm without an iron filter
Where it wins and where it loses
Wins
- 48,000-grain rating
- Fleck 5600 SXT valve
- 1.5 cu ft of resin
Loses
- Service flow not stated
- Requires a drain line and power
- Adds sodium to softened water (potassium chloride avoids it)
Limits to know about
- Figures are the maker's or seller's own; check fit and capacity against your water test and your equipment's manual.
Maker's figures
Every figure below comes from the source shown in brackets. Where the maker doesn't state something, we say so instead of estimating.
| Model number | 5600 | Retailer |
|---|---|---|
| Features (seller) | Programmable | Retailer |
| Dimensions (seller) | 15"L x 28"W x 62"H | Retailer |
| Material | Polypropylene | Retailer |
| Mounting / installation | Freestanding | Retailer |
| Method | Ion Exchange | Retailer |
| Product weight | 53 lb | Retailer |
| Model name | 56-SXT-48K-M | Retailer |
| Grain capacity (maker) | 48,000 grains | Retailer |
| Resin volume | 1.5 cu ft | Retailer |
| Control valve | Fleck 5600 SXT | Retailer |
Units to weigh against it
Other water softeners in the catalog
- SoftPro Water Systems SoftPro 941344 48,000-Grain Water Softener
- AFWFilters Fleck 5600SXT Water Softener
- Aquasana WH-SF40 40,000-Grain Water Softener
- Aquasure Harmony Series AS-HS72D 72,000-Grain Water Softener
Every water softeners on one grid · All Fleck units we cover
Final verdict
A sensible whole-house softener for up to 4 people on 15 gpg water.
Where to buy
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