About 33' is the max lift for water with a suction pump at sea level. If your pump says 36', they're stretching the laws of physics. You need a submersible pump to pull it from any deeper. At higher elevations, the max lift is less.
At any rate, be sure you have a check valve at the bottom. If the water drains out of the pipe, you have to bring it all the way up from the bottom every time you turn it on.
Good to know. The lift # came from the box. Always have a check valve.  Ed
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