We have a built in cement hot tub. 6 years, really haven't used it much. So now, the timer doesn't work, one of the jets doesn't work, and the heater won't heat the water. We call this pool guy and he gives us this estimate of 1k for everything but the heater itself (2k) or the electronic panel on the heater (650.00). He can't know if just replacing the electronic panel on the heater is enough, in other words, he can't know if we need a new heater (2k) until he fixes the electronic panel on the heater. So if he gets the jets working, a new timer, a remote control, new filter, and replacing some small air tube, and a new heater will be over 3k. Does that sound expensive? Does this stuff really cost that much?