To correctly set up interval watering we need to establish that today, the day of setting the program is not included in the day count. So effectively day 1 is tomorrow.

If you had a 2 day interval this would mean setting up and waiting as follows:

• Set the program today
• Tomorrow is day 1 – no watering
• The day after is day 2 – watering

The timer will then water every other day (every 2 days) thereafter.

While there is an initial ‘extra day’ to wait for the watering to start, the 2 day interval will result in watering every other day.

For example:

Set the watering interval today 5 April 2023 for 2 Days, device is expected to run on the highlighted dates.

5 Apr     Day 0

6 Apr     Day 1

7 Apr     Day 2

8 Apr     Day 1

9 Apr     Day 2

10 Apr   Day 1

11 Apr   Day 2

In a BX2/4 you can have each zone operating its own interval program – the most important thing being no program timing can clash (so each zone must have a different time where they are due to water on the same day)

BX4 testing with interval watering using Zone 1 and Zone 3:

10 March 2023 Friday

• • Set Zone 1 to water once every 4 Days at 8:40am for 10 minutes.
  • Set Zone 3 to water once every 5 Days at 9:00am for 15 minutes.
  • Both zones did not water today
  • ZONE 1 is expected to water on TUESDAY at 8:40am for 10 minutes. 
  • ZONE 3 is expected to water on WEDNESDAY at 9:00am for 15 minutes.

14 March 2023 Tuesday

• • Zone 1 watered today at 8:40 am for 10 minutes.
  • Zone 3 did not water today as expected.

15 March 2023 Wednesday 

• • Zone 3 watered at 9:00am for 15 minutes.

Article verified:  BTX8, CO3111, CO3112, CO3114, BX1, BX2, BX4