A good tip for this is to take food coloring and put a few drops in your toilet tank. If colored water appears in your bowl soon after you put food coloring in the tank, your toilet is leaking. Fix leaks as soon as possible after you discover them. If your toilet has sewage back-up, then there is a block somewhere along the branch line that connects the sewage and main lines. If you are unable to fix the blockage, you will need to hire a professional to run a snake in the line to clean it. Make it a habit to run your rarely used valves on a regular basis to avoid plumbing problems. Maintain them with penetrating oil, and turn them every so often to keep them from sticking. Government agencies can provide information about plumbing contractors. You can make sure that their license is up to date and if there are any negative complaints against them. Their license must be current and in good standing, otherwise you do not want them in your home. It is important to locate the main water supply cut-off valve in your home. More information about Best Plumbing Contractor Wantage.
Use a strainer over your sink drain to catch food and other bits of material. Otherwise, you will likely get a clogged drain. Clean out the one in the kitchen whenever there's something trapped there that shouldn't be. The ones in your bathtub should also be cleaned frequently, as needed. Avoid putting grease, fat, and other oils down your drain. Whenever they cool, they tend to harden and make clogs inside your drains. This is most true if you use a garbage disposal, as the fat causes the blades to function slower and they will become less efficient. Get rid of any fat or oils outside or in the garbage can. You can keep your bathtub pipes clear by pouring baking soda and vinegar down your drain once a month. Use one cup of each. Afterward, place a washcloth or towel over the top of the drain, to keep the chemical reactions contained.