Description
A soft water test kit for checking hardness. It tells you the one thing you actually need to know after a softener is installed or serviced: whether the water leaving it is genuinely soft, and whether the unit is still regenerating properly.
Key details
- Tests water hardness
- Confirms a softener is working and regenerating as it should
- Useful for commissioning a new unit and for routine checks
- Simple enough for a homeowner to run
Where it fits
Keep one on hand if you own a softener. A rising hardness reading is the earliest warning that the unit needs salt, a regeneration, or resin service - well before you see scale or stiff laundry.
Soft Water Test KIt. Manufacturer: Nelsen Corp. Part #: SW101 (alt: U7101).
Soft Water Test Kit
This test kit gives you a simple, hands-on way to check the hardness of your water so you can see how your softener is performing. Instead of guessing whether your system is doing its job, you get a direct reading you can trust, using an easy procedure that does not require special training or lab equipment. It is a small tool that answers a big question: is your water actually soft?
Why Testing Matters
A water softener works quietly in the background, and it is easy to assume all is well until scale, spotting, or dry skin remind you otherwise. Regular testing lets you catch a drop in performance early, whether it is caused by an empty salt tank, a fouled resin bed, a bypass left open, or a valve that needs service. Testing before and after the softener also confirms the unit is removing hardness the way it should.
When to Use It
A hardness test is useful when you first install a system and want a baseline, when you are troubleshooting water that suddenly feels different, or as a routine check to keep tabs on your equipment over time. It is also handy for confirming results after you have serviced or adjusted a softener, giving you the peace of mind that your fix worked.
Water Softener Plus is glad to help you interpret your results and figure out next steps if your numbers are not where you expect. Every order includes the guidance you need to test accurately and understand what your water is telling you.
Overview
- 🇺🇸 U.S.-based support and expert assistance
- 🔧 Built with trusted, industry-standard components
- 🚚 Ships nationwide - freight-safe packaging
- 🏠 Ideal for residential and light-commercial systems
Specs (Typical)
| Max Operating Pressure | 125 psi |
|---|---|
| Max Water Temp | 100 °F |
| Electrical | 120 V AC |
| Flow Range | 5-45 GPM (model dependent) |
Related: Control Valves . Parts . Get sizing help

