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A plumbing union is used to make it easy to disconnect two sections of pipe. Soldering the union shut would defeat this purpose, and it would be more economical to use an ordinary coupling if there is no intention of disconnecting the pipes.
You could use a phone book or browse your local newspaper to find a plumbing service in your area. If you would prefer to use the internet, there are several websites that will allow you to browse plumbing services and read user reviews on the service.
Plumbing is the way to get water into our homes. You would have no toilets, baths, showers or kitchen sinks without plumbing - we would be little better than cave dwellers.
I think plumbing is nasty
PVC is commonly used in plumbing
NO plumbing code would dare say use a globe valve under ground that has no access to service it?
Basic plumbing tools would be the best to use. These would include a propane torch, a metal file, a hacksaw, and several wrenches: basin, pipe, and adjustable.
Certain tools are preferred and required to do home plumbing repair. Liquid Drano is a product out there and it is very thick and hard to use, but it is safe. The best equipment to have would be a sing auger, and a toilet auger.
When one needs more Volume (not pressure)
One use is as insulating tape. Another is as jointing tape in plumbing.
plumbing
my employers were so unfair we employees formed a union.