There are other skills plumbers need aside from being able to work with water. One of the most common things that a water softener on is fixing water lines.
The wax ring is used to seal the drain outlet on the bottom of the toilet to the drain opening in the floor. When a toilet is installed, the ring is placed onto the drain... the toilet is dropped onto the ring... and the toilet bolts (also known as closet bolts) are tightened enough to lock the toilet in place. If that wax gasket ring starts to fail or isn't seated properly? Sewer gasses can sneak out from under your toilet causing your bathroom to have that suspicious smell. It can also cause water line repair to escape, sometimes invisibly, with each flush potentially damaging the floor hidden under the toilet.
In repairing a tub faucet, you will notice that there will be drips that you need to address to. With this, you will need to replace the washers and/or seats.
Once you have disconnected the tank remove it from your work space. Do a thorough measurement of the remaining pipe for reference when you go to the hardware store. I will be honest with you, you might need to make a few trips back to the store. Once you get the new tank, slide it into place to line up the plumbing.
Ventilation and insulation are important throughout your house, and especially in crawl spaces and attics. If you have a crawl space in your home, it's best to water line repair the floor with a good quality, heavy-duty plastic. Inside your home, make sure to use the exhaust fans found in most kitchens, bathroom and laundry rooms.
68. Sea sickness: I always keep a bucket in the cockpit, much better that the sufferer is sick into a receptacle of sorts than tries to be sick over the side.
In short, the emergency plumber you hire should be from a reputable company. If you think that you can rely on him then you should look for another one. An emergency plumber should be skilled and should be able to deliver quality services to everyone.