Legacy View makes setting up and monitoring your Chandler Systems water treatment system easier than ever! This App covers systems sold under Chandler Systems' three brands (CSI, Clearion and WaterSoft) that use the Legacy View Valve. When used with a Legacy View Valve the user, through the app, can do the following functions:

- Conveniently view all valve settings and status.
- Easily change valve settings.
- View current water usage information.
- Graphically view water usage information.
- Start a regeneration or backwash cycle from your phone or tablet.
- Set / view the servicing water treatment dealer information.
- Better understand how your system is working and understand what settings are for.
- Connect to all of your valves in your system from one tablet or phone.
- Update firmware on Bluetooth LE valves
- Manage your connection to your valves.

Note: This app is only compatible with Chandler Systems valves that have a revision number greater or equal to “C2.00”. These valves use Bluetooth 4.0+ (a.k.a. Bluetooth LE) to communicate and require smartphones or tablets to also have Bluetooth LE to use the features in this app. All recently manufactured Apple devices are Bluetooth LE compatible. Check your device specifications if you are unsure of it's compatibility.

(The firmware revision of the valve can be viewed on the valve display for 2 seconds after the valve is powered up.)

What's New

Version 1.10

In Valve Firmware:
• Fixed connecting to valves using some phones.
• Fixed regeneration starting when running on battery
• Other minor changes.
• Signature 2 firmware update to match latest Sig. 3 features, including:
- Better battery life.
- Improved Bluetooth communication.
- Regen counters bug fix.
- Other minor improvements.

Ratings and Reviews

Great product/Great Company


We had an iron/sulfur filter system installed in our home by our local Agway Company. The unit works very well, allowing our water to be odor and taste free. The Company, Chandler Systems has THE best customer support I have ever had the joy of experiencing. Very quick and positive response to a problem with the system working with the app. This app is very cool and allows us to monitor our water usage and the functioning of our filter system. The app makes the unit very understandable and user friendly. Great product, great use of technology and a true addition to our "smart" house👏

Wonderful Product & Support


Both the water system, company support and the use of the App in our newly built home has been a great experience. The water system does exactly what it is intended to do, questions to the company have been answered promptly and the use of the App is easy and very efficient. We would highly recommend using their products as you won't be disappointed.


Chandler Systems, Incorporated
19.3 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.
Age Rating
Rated 4+
© 2017 Chandler Systems Inc.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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