How do they put ice down for hockey games?

How do they put ice down for hockey games? At the beginning of the hockey season, the arena uses an advanced refrigeration system that pumps freezing “brinewater” (salt water) through a system of pipes that run through a large piece of concrete known as the “ice slab.” When the “ice slab” gets cold enough, layers of water are applied to it.

At the beginning of the hockey season, the arena uses an advanced refrigeration system that pumps freezing “brinewater” (salt water) through a system of pipes that run through a large piece of concrete known as the “ice slab.” When the “ice slab” gets cold enough, layers of water are applied to it.
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