GUMBALL MACHINES

Question

LICHVOD HARAV, I HAVE A VENDING BUSINESS AND PLACE GUMBALL MACHINES IN DIFFERENT STORES. I GO IN THE STORES ONCE A MONTH TO REFILL THE GUMBALLS AND TAKE OUT THE MONEY. THE PRIFIT IS SPLIT WITH THE OWNER. THE GUMBALL MACHINES ARE MINE AND THE GUMBALLS IN IT AS WELL. MY QUESTION IS DO I HAVE TO SELL THE GUM AND MACHINES WHEN I SELL MY HAMETS FOR PESACH CAN I BUY MORE GUMBALLS FOR THE MACHINES THAT NEED REFILLING ON PESACH. WHAT DO I DO ABOUT THE HANDELING OF THE GUMBALLS ON PESACH. THANKS