A propane fridge on electric uses three times as much as an electric fridge. You'll get way more power out of panels by tilting them in Dec, even in LA.
I thought you had three Li powered by solar, and one lead powering the house. Is that one lead battery the chassis engine starting battery? That is not what we expect, it would have come with house batteries wired separately from the chassis battery, so yes, the water pump and all of the house should be on house batteries.
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