Here are the jets before concrete. The PB concrete guy ,who did my band but isn't doing the big pour, said he would not feel comfortably pouring on top of the flange, that you see, cause the concrete would more than likely crack. The flange is built into the body. Also, how does one get the concrete around the deck jet neatly and still be able to unscrew the fitting to change out the spray pattern, and keep it recessed??? You can see the two little notched looking things right up against the ball. That is what you use to unscrew the ring around the ball .
I thought this would be so simple