1. Clogged drains: This is a common plumbing issue that can happen in sinks, showers, and tubs. To fix this, try pouring a mixture of hot water and dish soap down the drain, using a plunger, or using a drain snake.

2. Leaky faucets: Leaky faucets waste water and can increase utility bills. Fixing them may require tightening or replacing the faucet handles, washers, or O-rings.

3. Running toilets: This can happen when the flapper valve doesn’t properly seal, allowing water to flow continuously into the toilet bowl. Fixing it may involve replacing the flapper valve or adjusting the water level in the tank.

4. Low water pressure: If the water pressure in your home is low, it may be due to mineral build-up in your plumbing system or a leak. To fix it, try cleaning the aerators on your faucets, adjusting the water pressure regulator, or calling a plumber to locate and repair the leak.

5. Frozen pipes: This can happen in colder climates and can cause pipes to burst, leading to costly damage. To prevent frozen pipes, insulate them and keep a faucet dripping during extremely cold weather. If pipes freeze, you should call a plumber to come fix them.