What are overlapping schedules?

Overlapping schedules are schedules that will be watering at the same time at some point in the future. 

When this happens, you'll see an Overlapping tag on the Schedule page. This is a soft warning that your schedules will still run, but watering at the same time can lower water pressure, so some zones may not water as expected.

Depending on your app version, you may see this tag labeled Conflicting instead of Overlapping. Keep reading to learn how to prevent this.

What's the difference between the "new" scheduling system and the "old" one?

In app version 4.0.0 (July 2026), we released a new scheduling system for all OtO users. In the original OtO scheduling system, each individual zone had it's own schedule that was independent of all other zones and devices. This meant that sometimes two devices would run at the same time as each other (causing water pressure issues).

In the new scheduling system, users can simply create "Schedule" groups:

• The user defines the start time of this Schedule 
• User adds all the zones they would like to run as part of this schedule
• Schedule will run each zone individually and sequentially, regardless of which device the zone is part of

Read more about the new scheduling system here: About the New Scheduling System (July 2026)

What causes Overlapping Schedules?

If a Schedule will overlap at any point in time with a future Schedule, the app will provide a soft "Overlapping" tag.

For example, a user has 1 OtO:

• Schedule A is set to run every 5 days at 6am
• Schedule B is set to run every odd day at 6am
• Since both Schedule A and Schedule B will eventually try to run at the same time, you will see a Overlapping tag on the Schedule page

What will happen?

This overlap may cause some zones not to run.

To prevent this overlap, you can:

Choose a different time for one of the schedules.

How to prevent overlapping schedules

1. Make sure schedules don't run at the same time on the same day
2. Make sure one schedule finishes before the next one starts.
   • For example, if Schedule A starts at 6am and runs for 1 hour, a Schedule B should start after 7am to prevent overlapping.

What if I WANT to run two OtOs at the same time?

The new scheduling experience is designed to help prevent watering overlap across devices.

When multiple OtOs water at the same time, some homes may not have enough water pressure to support both devices at once. This can cause zones to water poorly, stop early, or not run as expected.

When you put your zones in one schedule, OtO automatically waters them one at a time, even across different OtOs, so your water pressure is never split between devices.

If you would like to continue to have multiple OtOs run at the same time: Make sure each OtO is in different schedules. Ignore the soft warning "Overlapping" in the app. You can learn more here: How to run multiple OtOs at the same time?

Read more:

• About the New Scheduling System (July 2026)