Melvin Waldron, CGCS said: when he needs to replace a hose on the boom he uses regular radiator hose from the local auto parts store.
Mel
Be careful of this, regular coolant hose isnt necessarily compatible with all chemicals.
AD Williams in AZ sells the proper labeled Goodyear stuff by the foot. (800) 527-0749. I talked to Matt, his site is down but the number is still good.