There is a guide online. But, it is possible doing it all by yourself. These are some tips for plumbing that could prove useful to you.
Have you ever had trouble cleaning a stain from a toilet seat? Use sandpaper instead of a brush. It ought to be sturdy enough to eliminate the stain but gentle enough not to harm the bowl of your toilet.
Do you have a fitting you just can’t remove with your tools? It is best to take a length of cord, then wrap it around the fitting. Then floss the fitting until the fitting is free.
Clogging may occur when hair can get caught in the drains. The solution is simple. Make use of a tie-wrap and cut it into a notch with a knife. Hairs will fall within the notches. Then you can place the tie wrap into the drain. When you pull it back up, all hair will be gone.
Some flappers in the toilet let go. Test this by adding food coloring the reservoir in case you think that the flapper is leaking. It is recommended to replace the flapper in the event that the color of water is changed after a period of time.