It takes time to become a good plumber, i.e., he has to spend more time for his career to be successful. There are many areas where a local plumber like "wet only plumber" & in "Gas Industries". In the first type work is done in homes such as fitting bathroom, sprinkler system. Second type is very sensitive. To work in a gas industry one has to first achieve Council of Registered Gas Installer Certificate. Some plumbers normally work in domestic areas such as leaky taps & blocked sinks etc. Normally whatever field a plumber chooses the basic thing he must know is Water Regulations & Building Regulation.
With a putty knife, carefully scrape the remaining parts of the wax ring from the area. Clean the spot so that the new wax ring will be level. Place a new wax ring on the opening and replace the toilet. Bolt it back onto the floor, reconnect the water line repair supply tube and watch for leaks as the water is turned back on.
If you need to add copper pipe make sure that you clean the old and new pipe by using sandpaper, inside and out. If it's not clean the solder will not flow into the joint. Another tip is to not over wrap the mail threaded pipe with tape, this can cause a leak. Twice around should be enough. Also, don't over tighten it.
OR, you can think about developing a group, where relationships prevail, your time and efforts come with great rewards, and you can multiply your efforts through helping others succeed, as they help you with introductions and referrals. So with much less time and effort, you can benefit from creating your own referral group.
These are people who would naturally refer to each other because they typically refer to each other. What about a "Home" referral team? people that support the "home" industry. More people are electing to keep their home and are willing to do the maintaining or fixing up. Electrician, plumber, window, roofer, siding, flooring, and so on. Think about these people getting together once a week to talk about projects that they are working on and creating a water line repair core of competent reliable partners that refer to each other. Inevitably, a person needs carpentry work after the electrician leaves.
When doing the install on a water heater, keep an eye out for unconnected pipes. A commonly missed pipe is the one that leads out from the area for drainage. It is probably a recirculation pipe; that helps your water remain heated without wasting too much water.
Over the counter drain cleaning products offer convenience and effective results. However, they are best left to those who need to simply improve the flow of water, not those who need to repair it.