Basketball Hoop that Fits in Umbrella Sleeve?

Chances are an umbrella sleeve (which is usually 1.5 " schedule 40 PVC) won't support the forces present for use of a basketball goal - and will crack/break in short order. There is an indeck option for a basketball sleeve, but it's either 3" or 4" in diameter.

There are several freestanding basketball goals available for pool use - both in pool and on deck.
Google - pool basketball goals
 
This is not a good idea to put a hoop in an umbrella sleeve (or in anything in your gunite shell). The constant hitting with a basketball will damage the plaster for sure and possibly the gunite.
 
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