Water is the image where the gap between what is attested and what is asserted is widest, so it is worth setting the traditions side by side rather than blending them.
The Talmudic material in tractate Berakhot lists a river, a well and a pot among the signs of peace, and attaches verses to each: peace extended like a river, the well of living water, the establishing of peace. The reading is scriptural and associative, and it comes with an explicit mechanism, the passage holds that a dream follows the interpretation given to it, so an ambiguous sign can be turned by reciting the right verse. Meaning is not discovered in this system; it is assigned.
Artemidorus, in the second century, refuses fixed meanings entirely. His governing rule is that a dream must be read against the dreamer, occupation, status, health, habits, and what is actually going on in their life. Water is therefore not one symbol for him. A flood is ruin to a landowner and profit to a boatman; the same sea is favourable for a merchant with cargo at sea and ominous for a man with none. He says explicitly that he relies on collected outcomes rather than on theory.
The reading that water is emotion and the unconscious is Jung's, and it belongs to a twentieth-century model of the psyche with layers beneath personal memory. It is a coherent position held by a named person.
These are three incompatible methods. The dream dictionary that opens with water meaning emotional turbulence has taken the third, dropped the argument that supports it, and presented the result as timeless.