I agree with you, Matt, and ideally that would be true, however a professional plumber isn't necessarily what I get, and 50 percent of the time, I end up with new problems. For example, one guy he sent up twisted the stem of my hot water shut off valve knob until it wouldn't function anymore. Another time, a guy sent up to change a washer in a faucet ended up ruining the stem and scratching my tub. There are more examples, but in short, if the job is simple enough, I research into it and fix it myself. I've been here 25 years and have never caused any damage, but I can't say the same for the people that have been sent up to fix things. So I'm here asking for advice, to find out if it's a complicated job or simple, and to make sure I do it correctly.
I value and appreciate your expertise and experience on this forum. Thank you, everyone, for your help!