Water flow meter with pulse counter - Daily Usage

Configuration
2

I have a similar pulse meter setup to yours and I do this to calculate the total usage over the last 24 hours:

- platform: statistics
  entity_id: sensor.water_usage
  name: "Water Usage Stats"
  # 10s sampling, so 6*60*24 points
  sampling_size: 8640
  max_age:
    hours: 24

- platform: template
  sensors: 
    water_usage_total:
      friendly_name: Total Usage
      value_template: >-
        {% if not is_state("sensor.water_usage_stats", "unavailable") %}
          {{ state_attr('sensor.water_usage_stats','total') | float }}
        {% else %}
          0.00
        {% endif %}
      unit_of_measurement: "gals used last 24h"

Displaying it in Lovelace looks like this:

              - type: entities
                entities:
                  - entity: sensor.water_usage_total
                    icon: 'mdi:water-pump'

My ESPHome sensor is pretty simple:

sensor:
  - platform: pulse_counter
    pin: 12
    name: "Water Usage"
    update_interval: 10s
    unit_of_measurement: 'gal'
    filters:
      # reports in pulses/min, so divide by 6 and by 64 pulses per gallon
      multiply: 0.0026041667
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