Thanks for the reply , that's just what we thought it was doing, checking temp.
So there is different systems where some like ours filter for a certain amount of time each day and others that filter continuously, 24 hr, on a quiet pump, is that right?
Which system is best?
If we set up the tub in eco mode how much temp would you expect it to lose in the 10 hours it's not heating?
If we could set up the filter system to work in late afternoon i wonder if we would have a good enough temp after the two hours for when we would want to use it, early evening.
Do you think it would be feasible to have the tub in standard mode during the day and switch to eco mode at night so i dont have to hear the pump cutting in & out at night?
Thanks for any replies