First off, you need to take care of your toilet. Unlike taps and pool pumps, which you can easily detach from your plumbing and check, repairing your toilet takes more time. Use as little toilet paper as possible and flash your bathroom enough to avoid clogging. If you have children, ensure they know what to put and what not to put in the toilet.
In your kitchen, clogs and pipe problems are mostly caused by fat. The buildup of fatty material causes blockage, especially during winter, ,when the temperatures are low. You need to use strainers in your kitchen to ensure no litter goes through your drains and then make it a rule not to dispose off grease and fatty materials through your drains. Once in a while run hot water and vinegar through your kitchen drains.
Your bathtub and your bathroom piping might be clogged by hair. As such, you need to ensure there is no accumulation of hair in your bathroom. Use a strainer to trap hair and other particles that might clog your bathroom drains. Your hot water systems might be blocked after a long period of using hard water.
Whether you need to protect your irrigation systems or your split systems, know that pipes tend to burst during winter. As such, you need to avoid freezing at all times. Use insulators on your pipes to reduce freezing. If you cannot reach some pipes, such as your irrigation systems, leave your hot water tap dripping. You can avoid most plumbing problems if you practice prevention. Plumbers have the right plumbing tools and pool supplies to detect and prevent problems before they become emergencies.