The real maximums are in terms of flow characteristics, not distance.
If you are moving 60GPM, you can go about as far as you'd like with 2" pipe, but not 1.5" pipe. So, a meaningful answer requires that you give us info about your pool, existing pipe size, filter size, and any elevation difference between the existing pump location and the new one.
Also, unventilated out buildings tend to be hot. A hot room translates into a really hot pump. And really hot pump tends to translate into short motor life.
Ben
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