Peavey floor monitor speakers

Question

I have 2 peavey floor monitor speakers Model-112HS BW. My issue is the volume control: It is either a short or the potentiometer is bad. You have to turn the volume control numerous times, and/or tap the k**b to make a connection to get the audio to come thru. I have opened the speaker volume control from the speaker and even sprayed electronic contact cleaner on as well. My question is? Is there replacement parts that I can order to correct this. Or can I just bypass the volume control all together and just control it directly out of the amplifiers master volume?