Last week I measured the water leaking dripping from my shower: 8 cups in 24 hours. I watched some YouTube videos and decided I could tackle this. I have a single handle Delta faucet, 1700 Monitor series. Looked like I could replace a couple springs and seals and that might stop the leak. Went to plumbing supply store yesterday (where the guy tried to sell me a $50 cylinder...whenever salespeople try to upswell me at stores like this I wonder, is it because I'm female? Who knows. I said I'd be back if the $5 seals and springs didn't work.) This was only my second plumbing project so I carefully watched two videos before beginning. Everything was going great until I couldn't get a brass collar off with my wrench,whereupon I learned about the wonders of liquid wrench (and 4 hours of patience). After using that I was able to unscrew the fixture with no wrench, just a piece of rubber to improve my grip. I took pictures as I took everything apart, replaced the springs and seals, and put it back together using my photos. Tested it for an hour with a bowl under it. Less than 1/2 teaspoon of water. Success! Actual time to do this repair, not including waiting, was about 45 minutes....and that was working very slowly and carefully. A lot of fun for $5!