I doubt its fatigue is from just the initial physical contact with the acid. Its probably due to the continued contact as it dries inside the drum. Unless you are rinsing and neutralizing, the acid is still breaking the cable down on a molecular level.
I agree with Rod, the cable has wear on it. A couple of months?...maybe, with usage every day.
Some types of wire are not effected by acid like music wire but oil tempered wire is even a flat rod if it goes in acid will break i have seen them broken in the frame in many places after use. Many times we will take cables out of a drum that have broken inside the drum in many pieces marvin
I have been doing this since the early 80`s and have never seen a broken cable in the drum. We run water while we clear the sewers so the cable comes back clean. I`m heading out to Sturgis for the week so when I get back we`ll test some ACID.
bhead62, Yea "A couple of months" Note the name of my business"ALL CLEAR SEWER" We do this all day long, not just once every other week.
My father has been cleaning sewers for over 50 years, and he has known Marvin all of them. Marvin also has seen a lot over the years. I can tell you I am 100% positive a harsh acid was in the sewer, and it will ruin a oiled temper cable. As Marvin said music wire rests it much better than oil tempered. The acid does not corrode the cable, it gets into the pours of the steal and changes the temper of the cable. Oiled tempered cable is very porous, where music wire cable is a lot less porous, so it can resist the damage of acid.
Oh note our name "A - Archer Sewer and Plumbing" Notice Sewer comes before plumbing? We been cleaning sewers for 50+ years, I have been cleaning sewers official just over 20 years, unofficially 30+ years. The unofficial part was when I worked summers and spring breaks with my father, he has taught me a whole lot. I also learned a lot from Marvin at Allan J Coleman.
All Clear, I was wondering what brand cable is that, along with do you know if its music wire or not?