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 3.0.13

Valve Firmware Update: Improvement in clock timing and other miscellaneous minor fixes.

Ratings and Reviews

2.6 out of 5
12 Ratings

12 Ratings

Dvhburvnindnuc ,

It’s a great start

This app is a great start and a glimpse into what the future will look like. There’s a lot of information and I can change most things via my phone which is fantastic.
The app itself needs to be updated though. It only works in landscape mode and is unaware of the iPhone X screen so the camera notch removes words and the bottom part of the screen goes beyond what I can see.

Developer Response ,

Hello – Thank you for your feedback. The new version of the app is now available and it supports the iPhone X series phones. We hope you enjoy the new version and if you run into any issues, or would like to provide additional feedback, then please let us know at (888) 363-9434.

???rip ,

No longer works...

Since update the app no longer sees my unit. Even after deleting and reinstall....


drywall_dan ,

Good for softener valve, doesn’t work with filter valve

This app is intuitive, makes controlling and monitoring your water softener fun! It doesn’t function with the nitro filter valve, despite what the manual says...

Developer Response ,

Hello Dan – Thank you for the feedback. If you are having trouble connecting to one of our valves, then please do not hesitate to call us. You can reach us at (888) 363-9434.


Chandler Systems, Incorporated
29.4 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
© 2019 Chandler Systems Inc.


  • Family Sharing

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

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