What workarounds did people try for "How to fix a leaky plumbing valve that doesn't fit a new faucet"?

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Community members documented 90 workarounds:
1. hiring a professional plumber
2. using two wrenches to loosen and remove old nuts
3. replacing the antique valve with a modern quarter-turn stop
4. reusing the old compression nut if the thread pattern matches
5. Guessing based on visual appearance of the cartridge or consulting plumbing forums.
6. Taking out the cap to clean sediments
7. Adjusting the water level
8. Aligning and wiggling the cap until it stops leaking
9. Replacing the entire fill valve
10. Calling the city to shut off the water at the city-owned shutoff valve
11. Replacing the valve or setting a new washer or stem in it
12. trying a sharkbite valve
13. soldering a male adapter onto the pipe and threading a female threaded shut off
14. removing the escutcheon cover plate to gain extra room for cutting
15. Replacing the fill valve entirely instead of attempting a hit-or-miss repair since they are inexpensive.
16. Hire a professional plumber to handle the valve replacement and any necessary couplings.
17. Opening the valve fully and backing it off 1/8 turn
18. Replacing the entire valve with a new ball valve
19. Taking the old cartridge to a supplier to match and replace it
20. Hiring a plumber to turn off the water and extend the line
21. Removing the top nut of the metal piping and screwing on a steel braided line without replacing the angle stop
22. Getting an initial plumber inspection of the crawl space to map existing lines
23. Checking for corrosion, leaks, galvanized sections, and water quality
24. Gathering multiple quotes and asking about permits and access
25. Considering PEX as a more practical choice in crawl spaces to manage costs
26. Using liquid wrench or WD-40 to loosen stuck parts
27. Cutting off the nose bonnet with a heat source or cutting wheel
28. Using a Dremel tool to carefully remove parts without tweaking the valve body
29. Spraying brake cleaner to prevent the valve from breaking inside
30. Preparing for the PCV hose to disintegrate upon removal
31. Searching for universal replacements or matching parts at local hardware stores like Home Depot or Lowe's.
32. Using pliers or vice grips to turn the spigot rod
33. Calling a plumber
34. turning off the water, heating the solder with a propane torch, and pulling the spigot off
35. adding a female adapter or FIP adapter for easier future replacement
36. turning the faucet 90 degrees with a soldered elbow
37. using a propane torch to melt solder and pull off the spigot
38. shutting off the main water and loosening a threaded spigot
39. Using a brass assembly or valve as a transition piece
40. Getting professional plumbing quotes to replace the valves and potentially open drywall
41. Trying to determine if the valve can be swapped out as a DIY project by removing screws and seals
42. Calling a professional and asking to learn while they do the work.
43. Cutting out the gate valves and replacing them with ball valves
44. Turn off the valve on the toilet to isolate it.
45. Ignore it, as it may not cause any actual damage.
46. Replacing the old valve with a new Moen or Delta valve
47. Plugging the shower head hole to use a valve intended for a tub-only application
48. Carefully cutting back brittle CPVC pipe as far as possible to avoid shattering
49. Cutting the copper pipe and replacing the valve with a compression fitting
50. Using a pipe cutter and a new quarter-turn valve
51. Cutting the supply line or pipe to disconnect it from the sink
52. Buying a new valve with the same spread or shopping at a local plumbing supply store instead of big-box retailers or online marketplaces.
53. Using penetrating oil to loosen the seized core
54. Buying a cartridge removal tool
55. Cutting open the wall from the opposite side in a closet for easier access to upgrade the valve
56. having appliance installation personnel look at or perform the replacement
57. Using a coupling and a new ball valve
58. Tearing off the setup
59. Using Teflon tape
60. Leaving the job to a professional if the water cannot be turned off
61. using alternative model numbers or checking compatibility across different valve series
62. Contacting the manufacturer to get a factory replacement part
63. Replacing the entire faucet fixture instead of sourcing a replacement part
64. Searching online for specific non-standard fitting descriptions like compression to M10 male
65. Cutting into the drywall for better access
66. Using a regular box-end wrench instead of large channel locks
67. Rebuilding the existing valve with a repair kit if it is a major brand
68. Attempting extraction with standard tools or pulling the assembly without proper guidance
69. Living with higher water pressure and noticing appliance banging.
70. searching for manufacturer instructions or online teardown videos
71. replacing the gasket or washer
72. asking landlords to handle the repair if renting
73. Taking the entire toilet tank off and replacing the complete flush valve kit.
74. Opening up the wall behind the cabinet to cut back to fresh copper and solder a new stub out.
75. Installing a piggy-back valve onto the existing valve without removing it.
76. Using a multi-turn valve repair kit to fix the internal components instead of replacing the whole body.
77. Buying an expensive vintage replacement part
78. Removing the current fixture to verify if a standard modern unit might actually fit the existing flange
79. Paying a professional to move the plumbing drains to accommodate modern fixtures
80. Cutting off the old valves and installing compression angle stops.
81. Installing soldered adapters right above the valves.
82. Using push-to-connect adapters to transition from copper pipe to flexible hoses.
83. Cutting off the old valve instead of trying to twist it off with wrenches
84. Tightening the packing nut to temporarily stop a leak
85. Replacing only the easily accessible sections of pipe and leaving the rest
86. Getting multiple plumbers to do camera scope inspections to assess urgency
87. Rebuilding the valve by swapping the internal stem and packing nut with parts from an identical new valve
88. Cutting the pipe below the solder joint and installing a new compression valve
89. Heating the joint with a torch to melt the solder and pull the old valve off
90. Screwing a new female-to-male valve directly onto the outlet of the broken old valve

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