7 1/2 and 8 1/2 psi
I pumped up a basketball to 60 PSI, at about 55 it started making crackling noises, when I got to 60 PSI the crackling noise was constant and within 2 seconds of reaching 60 PSI the ball exploded. The ball was a Wilson Optima Rubber Basketball .
The gauge on your pump, if you have one.
For NBA regulation basketballs, the requirement is between 7.5 and 8.5 psi. Your basketball may vary, and if it does, the packaging should state how much psi should be used. Source: http://www.livestrong.com/article/84284-basketball-official-size-weight/
About 8 PSI
7.5 to 8.5 psi
Yes it does . Lower psi than needed to completely fill the ball would make it bounce less. More would makeitbounce a bit higher . But only to a certain point
pressure would always change due to temp, so u gotta take that into account.
A concrete strength of 3500 PSI should be just right for a basketball court.
Tire gauge, and some basketball and bicycle pumps.