Recommended Old Work Box (Different than used in the video): https://amzn.to/2W0rDfY

I have ran across this issue on a number of my rental properties and renovation project where the main water shutoff will not stop leaking water. This usually happens on a "globe" style water shutoff valve. I will walk you through 3 different fixes which will start easy and progress in complexity. Time stamps for each step are listed below along with the links to the parts used.

Chapters
0:00 Introduction
0:52 Step 1: Tighten the Packing Nut
1:51 Step 2: Adding New Teflon Packing Cord
8:43 Step 3: Disassembly and New Flat Washer
13:57 Closing Remarks and Additional Points

Parts Used
Teflon Packing Cord: https://amzn.to/2Yg8OXg
1/2 (3/4" OD) Flat Washer: https://amzn.to/2Ydv6J5

Tools Every Weekend Warrior Needs
Makita Corless Drill Combo Kit:  https://amzn.to/2Jsw78j
Dewalt Drill Bit Set:  https://amzn.to/2w0xAA4
Dewalt Screwdriver Bit Set:  https://amzn.to/2UqTvK9
Craftsman Screwdriver Set: https://amzn.to/3bAsNEG
Eklind Allen Wrench Set:  https://amzn.to/2wKDu8M
Pliers (4-Piece Set):  https://amzn.to/2JlYUM7
Stanley Utility Knife:  https://amzn.to/2Us2pqG
Stanley Tape Measure:  https://amzn.to/2WPzr5K
Studbuddy Stud Finder:  https://amzn.to/38MdzfV
Johnson Torpedo Level:  https://amzn.to/3dzx5Ot
Stanley Hammer:  https://amzn.to/39tudPL
Buck Bros Wood Chisel Set:  https://amzn.to/2QTebYO
Klein Voltage Tester: https://amzn.to/2XMa1I2 
Klein Outlet Tester: https://amzn.to/39GyO33
Wire Strippers: https://amzn.to/2NHHKuS 
Little Giant Ladder: https://amzn.to/2UrFmfG

DISCLAIMER: This video and description contain affiliate links, which means that if you click on one of the product links, I’ll receive a small commission.