How do you remove the tower spray from the rack?
Answer Hello Bernadette. Sorry there is no video at this time. Turn the spray tower a bit and carefully pull it off the rack. Re-install on the new rack in reverse.
Is this item (tower spray) necessary for acceptable use of dishwasher?
Answer Hello Frank! Yes, the spray tower 99003318 is needed to help guide/spray the water within the dishwasher. Thanks!
The knob on the top appears to have broken off. Can I just replace a screw or do I need to replace the entire spray tower?
Answer Hi Elizabeth.The spray tower part # 99003318 will inset into the center of the rack. You will hold it vertically and then you will use a slight twist to the right to snap it in place. You will want to first off-set it to the left slightly and then set it in. Thank You.