Welcome to the community.
Thanks for your suggestion.
I already have a pool blueprint and a pool solar heating blueprint. I have been developing them for over 3 years now. These blueprints already handle what your saying + some and is mostly controlled through the dashboard.
What I will say is there is only one timer so there is no conflicts. The timer will change depending on the appropriate action.
For the blueprint that I have shared your could try using my 
Trigger - Run ON Timer. You could create 4 different run times using different actions with an additional action to increase the timer.
Blacky 