I am new to plumbing but live in a house on a slab with large oak trees. I have been cleaning the drains out for years with rental drain cleaners. I recemtly found and bought a Ridgid K 750 drain cleaner with a 3/4" 125 foot cable. It needs a new end on it and I am not sure how to go about fixing it. Could one of you guys help me out and give me a lesson on cable repair 101. I am going to have to also buy new cutters as the person I bought this unit from could not find any of the old cutters.