Pool auto filtration based on temperature

froggy.laurent · January 9, 2022, 10:57am

note :
I am not an pool specialist, neither an IT developper, all informations i used is based on public pool information from specialist and homeasssitant examples .
if you see any mistakes or better way to do this , please let me know

1.purpose

Your mechanical pool programmer (like this one below ) need to be manually adapated seasonally
2022-01-09_11-49-41

the purpose of this package is to remove this re-programation task by adding an automatic filtration duration based on temperature :

why not :

raspipool ? :
I started at first, by trying to implement this project , but the reliability and the cost of the probes scared me, so i preferred to start from scratch with something simple and not intrusive, that wil not play with the water alchimy.
(the switch.pool_pump can be in parrallel with existing mechanical pool programmer)
only one automation for start and stop (using delay) ?
i used this first , but the cycle can last hours, and “delay” don’t survive a reboot of HA,
custom component from oncleben31 : use this one, it’s better than mine, if I had know it sooner I wouldn’t have done mine

2.what it does

each day at input_datetime.pump_auto_start if input_boolean.auto_filtration is ON an automation will start the pump
as the pump is ON a sensor will be incremented , and when it reachs the duration defined by the chart , a second automation will stop the pump
the filtration duration is recalculated each time the temperature changes.
so , when the temperature rease during the day, it will adapt the filtration duration

lovelace card screenshot

3.installation

3.1 prerequisites

activate the package mode in your configuration.yaml

homeassistant:
  packages:  !include_dir_named packages

3.2 install package

from my github copy pool.yaml (and eventually pool_dummy.yaml to test it ) to your config/packages folder
replace switch.tz3000_pompe_piscine by your switch in pool.yaml
replace sensor.pool_water_temp_kalman by your water temperature sensor in pool.yaml and lovelace-card.yaml
restart HA
copy the two .Png images from www/IMG/ to your folder config/www/IMG
in a lovelace dashboard, add a card with the content of lovelace-card.yaml
- edit dashboard
- add a manual card
- show code editor
- paste the content of pool-lovelace-card.yaml and save

if you don’t want to use your real switch and/or sensor, you can also install the pool_dummy.yaml package that will add :

input_number.dummy_temp_piscine : a dummy temperature input.
sensor.pool_water_kalman : a temperature sensor set by input_number.dummy_temp_piscine
switch.tz3000_pompe_piscine : a virtual pump switch.

4. usage

choose your mode
- standard :
  linear ratio based on oklyn reccomandations
- abacus :
  more complex equation based on jeedom plugin
  tips: click or long click on abacus graph to change ratio to 100 or 120 ( i use 120 )
select the pump filtration start hour
check if it works as expected

in addition you can also set the manual mode on and choose manually the filtration duration

hardware used and wiring

the idea was to keep the existing system and to add an automated switch. so i wired my zigbee switch as an additional relay like this

For the switch i used this zigbee relays : AllbeAI TY4CH
For the temperature sensor, i used an esp32 with a waterproof DS18b20 sensor in the skimmer
Dallas Temperature Sensor

Plouf34 · April 15, 2022, 6:40am

Hello
Is it possible to recalculate during the day the “ input_datetime.pump_auto_stop”, because the temperature of my pool at start (temperature taken from my pool heater) is not relevant? Only few minutes after my pump pool starts, the temperature is good. And this temperature increases during the day. The auto filtration duration is good, but the time of the pump auto stop is not recalculate.

For example, this morning, the pool temperature was 9degrees =filtration 3hours. After pump pool start, the temperature increases to 14degrees, duration changes to 7,2hours (normal), but pump auto stop time has not changed (11:27)

froggy.laurent · April 15, 2022, 12:14pm

hi,
actually i changed a little bit my automation, i order to stop the filtration when a duration is reached.
and the duration is calculated in real time, depending of the temperature, by a daily sensor

here is my new code ( i will update the github soon)

here is the new automation and sensor

  - platform: history_stats
    name: pompe_piscine_on_today
    entity_id: switch.tz3000_pompe_piscine
    state: 'on'
    type: time
    start: '{{ now().replace(hour=0, minute=0, second=0) }}'
    end: '{{ now() }}'

 -  alias: '[Pool] manual filtration cycle stop'
    description: ''
    trigger:
      - platform: numeric_state
        entity_id: sensor.pompe_piscine_on_today
        above: input_number.manual_duration
    condition:
      - condition: state
        entity_id: input_boolean.manual_filtration
        state: 'on'

foXaCe · April 15, 2022, 6:34pm

hello,
it same approach of this ?

Pool Pump Manager

froggy.laurent · April 15, 2022, 10:13pm

Wow,
If i have found the custom component from oncleben31 sooner , in wouldn’t did mine
Thanks for the notice foxace

For people starting from scratch, I would recommend to install oncleben31’s custom component instead then my yaml.
It look really more elaborated

foXaCe · April 16, 2022, 5:17am

avec plaisir

maybe merge the two projects

mellowtronik · April 24, 2022, 5:00pm

@froggy.laurent
Salut, personnellement j’utilise ton projet car impossible de trouver celui de oncleben31 sur hacs et je ne comprends pas tout dans son installation manuelle.
Juste une question, stp. J’ai tout installé, carte, etc… Tout à l’air bon.
Du coup, pour lancer la filtration automatiquement en fonction de la température, je n’ai qu’à juste coché la case (automatic mode) et mettre l’heure dont je veux que ça le prend en compte dans (auto start time)? Et c’est tout?
Merci

froggy.laurent · April 24, 2022, 9:01pm

Oui c’est tout
Content de voir que ça sert à quelqu’un

mellowtronik · April 25, 2022, 8:55am

En tout cas, ça à l’air de fonctionner parfaitement.
Je l’ai même fait installer a une personne sur le groupe Home assistant francophone Facebook et Idem, ça fonctionne bien.
Si tu fais d’autres mises à jour, je suis preneur

froggy.laurent · April 25, 2022, 9:29am

oui je maintiendrai le github, si je vois des améliorations ou des errerus

Plouf34 · April 26, 2022, 1:36pm

hello
Je n’arrive pas a creer le capteur de temperature de piscine moyenne (sensor.pool_water_temp_avg).

Sachant que mon capteur s’appelle comme ceci:
sensor.piscine_temperature

Voici le code rentré:

sensor:
  - platform: template
    sensors:
      pool_water_temp_avg:
        friendly_name: "pool water"
        unique_id: sensor.pool_water_temp_avg
        unit_of_measurement: "°C"
        icon_template: mdi:coolant-temperature
        value_template: >
          {{ ((float(states('sensor.piscine_temperature')) 
          + float(states('sensor.piscine_temperature_2'))) / 2) | round(1, default=0)
          }}

Je pense qu’il bute sur ce sensor qui n’existe pas : ‘sensor.piscine_temperature_2’

froggy.laurent · April 26, 2022, 1:54pm

ah oui, c’est un peu spécifique à ma config.
j’ai 2 thermomètres ( un dans chaque skimmer)
et je fais la moyenne des deux avec le sensor.pool_water_temp_avg
tu peux complètement supprimer ou commenter les lignes 2 à 12 et remplacer sensor.pool_water_temp_avg par sensor.piscine_temperature dans tout le reste de pool.yaml

Plouf34 · April 26, 2022, 2:31pm

Merci;
Du coup, a quoi sert le sensor:

   
  - platform: statistics
    name: "pool water temp avg"
    entity_id: sensor.pool_water_temp_avg
    state_characteristic: mean
    max_age:
      hours: 24

Autre question: peux t on trouver quelque part, l’heure à laquelle va s’arreter la filtration en mode auto? Plutot que de n’avoir que l’information sous forme : 7h de filtration

Plouf34 · April 28, 2022, 7:24am

Hello
Pas de réponse à ma dernière question? A savoir récupérer l’heure de fin de filtration?

Bergerie · April 29, 2022, 4:56pm

I thought this was an English speaking forum! Please act accordingly!

Plouf34 · April 29, 2022, 5:41pm

Hello
How to retrieve the end off pump like this : 14:45:23 instead of the pump time duration line this : 7,3 hours?

Plouf34 · April 29, 2022, 9:30pm

I’ve found

   {{ strptime(states('input_datetime.pump_auto_start'), '%H:%M:%S') 
       + timedelta( hours = states('sensor.auto_cycle_duration')|float(4) ) }}

elyisum · May 5, 2022, 6:49pm

Hello
I am interested in automating my pool pump and light. I am at the very beginning of my research.
Can you post a picture or shema of your wiring @froggy.laurent ?

froggy.laurent · May 11, 2022, 4:14pm

c’était une erreur ( doublon) .
en fait c’est 2 méthode différentes pour obtenir une moyenne

froggy.laurent · May 11, 2022, 4:15pm

ihave added a picture of the wiring on the first post.