What is Johny mop?

What could be causing the loud banging noise in my water pipe? What is the best way to install a door latch using a mortise tool? What are the benefits of using a type 1 surge protection device in a residential or commercial setting? How can I determine if my air conditioner is frozen? What are the differences between using Kerdi vs cement board for waterproofing in a bathroom renovation project? How can I effectively rip up a tile floor? What are the benefits of using blackout shades behind blinds for light control and privacy in a room? What are the benefits of installing under deck ceiling panels in your outdoor living space? What are fun things to do at a birthday party sleepover for 12 year old girls? What are the best options for small socket light bulbs for a compact space? What is the recommended drying time for polycrylic? What are the benefits of using vinyl flooring squares in comparison to other types of flooring options? How can I create a DIY backyard swing for my outdoor space? What are the benefits of choosing furniture with a beech wood finish for your home decor? What type of glue is best for bonding glass and metal together? What are the different types of corrugated pipe couplings available for connecting sections of corrugated pipes? How do you tell if a girl is playing hard to get or if she is just not interested? How can I effectively perform dry rot wood repair to restore the structural integrity of my damaged wooden structures? What are the specific requirements outlined in the plumbing code for venting systems in residential buildings? What is the recommended distance between bed slats to ensure proper support and stability for the mattress?