The hot water pipe whistles when water is drawn because the flow of water creates turbulence and vibrations within the pipe. These vibrations can cause the pipe to resonate at a certain frequency, producing the whistling sound. Additionally, the pressure and velocity of the water flowing through the pipe can also contribute to the whistling noise. It is important to address this issue as it could indicate a problem with the plumbing system that may need to be fixed to prevent further damage. **

Yes, hot water tanks can be hidden by incorporating them into the design of a home. They can be placed in a utility room, closet, or basement to keep them out of sight. Additionally, some homeowners choose to install tankless water heaters, which are much smaller and can be hidden in a cabinet or under a sink. With proper planning and design, hot water tanks can be effectively hidden from view. **

Some hidden gems in London include the Leighton House Museum, a beautifully preserved Victorian home with stunning Middle Eastern-inspired interiors, and the Hampstead Heath Pergola and Hill Garden, a tranquil and picturesque spot with stunning views of the city. Another hidden gem is the Little Venice area, a peaceful canal network with charming houseboats and waterside cafes. Additionally, the Sir John Soane's Museum, a unique house museum filled with an eclectic collection of art and antiquities, is a must-visit for history and architecture enthusiasts. **

Hidden gems like Kemono Jihen are lesser-known anime series that offer a unique and captivating story, compelling characters, and stunning animation. These hidden gems often fly under the radar but have a dedicated fanbase due to their high-quality storytelling and production. Kemono Jihen, in particular, stands out for its blend of supernatural elements, mystery, and character development, making it a must-watch for fans of the genre. These hidden gems often provide a refreshing and memorable viewing experience for anime enthusiasts looking for something new and different. **

Some short anime hidden gems include "Barakamon," a heartwarming slice-of-life series about a calligrapher finding inspiration in a rural village; "Tatami Galaxy," a unique and visually stunning show about a college student's surreal experiences; and "Anohana: The Flower We Saw That Day," a touching story about a group of friends dealing with grief and guilt. These anime may not be as well-known as some others, but they offer compelling stories and memorable characters that make them worth watching. **

Yes, there are many guides available online and in books that can teach you how to make a bird call whistle by yourself. You can find step-by-step instructions, videos, and diagrams that will help you create your own bird call whistle using materials such as wood, plastic, or even natural materials like bamboo. Some guides may also include information on different bird call whistle designs and techniques for producing specific bird sounds. Whether you're a beginner or an experienced craftsman, there are resources available to help you make your own bird call whistle. **

Bird babies get water from their parents, who regurgitate water and food for them to consume. This process is essential for the survival of the young birds, as they are not able to find water on their own at such a young age. The parents carefully provide the necessary hydration to their offspring, ensuring their growth and development. This behavior is a crucial part of the parental care that birds provide to their young. **

Some hidden gems for the PC include OBS Studio, a free and open-source software for video recording and live streaming; DaVinci Resolve, a powerful video editing software with advanced features; and HandBrake, a tool for converting video files to different formats. These software are not as well-known as some of the more popular options, but they offer high-quality features and functionality for users looking for alternatives. **