I usually turn my controller off between jobs but, after speaking to another window cleaner, he leaves his on all day with univalve stopping the flow. Same as my setup.
Does this cause unnecessary strain on the pump? I've left mine on overnight recently (by accident) and it didn't damage anything - just drained a lot of battery.
It's the usual V11 controller - this one, in fact https://purefreedom.co.uk/100psi-shurflo-pump-strainer-and-flowmaster-controller-on-back-plate.html
Does this cause unnecessary strain on the pump? I've left mine on overnight recently (by accident) and it didn't damage anything - just drained a lot of battery.
It's the usual V11 controller - this one, in fact https://purefreedom.co.uk/100psi-shurflo-pump-strainer-and-flowmaster-controller-on-back-plate.html