How to install a new Moen tub and shower?

Jim
by Jim

I am installing a new Moen Adler L82839 tub and shower valve and accessories. The problem is that when i turn on the faucet, water comes out the spout, but also comes out of the shower head a few seconds later. It is only a small amount of water coming out of the shower head, but enough to get wet when trying to adjust the water temperature. Any ideas??

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