This is a drain cleaning, not installing new plumbing...... If a home owner wants to replace a receptacle cover in a house because it is damaged and they know what they are doing, my hats off to them.
I may have to hire a drain cleaner, but my daughter has limited funds. Just looking for a less expensive option that might work. IT WILL NOT CAUSE ANY DAMAGE OR LOSS OF LIFE to try to clean a stack.
I am an electrician, but very handy in all trades, I have built houses, plumbed houses and aided with a professional on gas piping. ALL UNDER PERMITS I do not think a drain clean item requires a plumber to repair it.