How much more expensive will it be to heat the water throughout the day in the "on" position than if it were in the timer mode?

I'll try monitoring smrt plg on the pump (have pump constant on) and set a timer to schedule desired times/days as needed, or use a virtual assistant.

Hi, It is difficult to say as there are a number of factors that are unique to each application that will determine this. Please consult with our customer service team and they can give you more detail based on your unique circumstances. I have included the phone number below. Best, Watts team 1-978-689-6066 Support Hours: M-F, 8:00 a.m. - 5:00 p.m. ET