In the wintertime, the pipes are heated by heat tape and those tanks are mostly filled with filter material. Besides, i will be building something around it anyway this summer to make it look better. Glad i got you old *******s giving me pointers. Negative Nancys.
Besides,, i have a 7yr warranty.
And yes I'm sure the salt helps but let's say we have a few real bad days and it isn't working well due to ice or something. All i have to do is turn a few valves and bypass it until the freezing weather is gone. Very simple fix but i don't see that happening.