No, drain cleaner and toilet cleaner should not be used together. Drain cleaners often contain harsh chemicals such as sulfuric acid or sodium hydroxide, which can react dangerously with the chemicals in toilet cleaners. Mixing these two types of cleaners can create toxic fumes or even cause an explosion. It is important to always read and follow the instructions on cleaning products and never mix different types of cleaners together. **

It is difficult to determine who is cleaner without more specific information. Cleanliness can vary greatly from person to person, and it depends on factors such as personal hygiene habits, living environment, and lifestyle. Without more context, it is not possible to definitively say who is cleaner. **

When choosing a chain cleaner, it is important to consider the type of chain you have and the level of cleaning required. For general maintenance, a simple brush and degreaser can be effective. However, for a more thorough cleaning, a chain cleaning tool that includes rotating brushes and a degreaser reservoir may be more suitable. Ultimately, the best chain cleaner will depend on your specific needs and preferences. **

The choice between a cordless vacuum cleaner and a corded vacuum cleaner ultimately depends on individual preferences and needs. Cordless vacuum cleaners offer more convenience and flexibility for quick clean-ups and reaching tight spaces without being restricted by a cord. However, corded vacuum cleaners typically provide more powerful suction and longer run times, making them better suited for deep cleaning and larger areas. It is important to consider factors such as battery life, suction power, and the size of the area to be cleaned when deciding between the two types of vacuum cleaners. **

The salary of a pipe cleaner or sewer cleaner can vary depending on factors such as location, experience, and the specific employer. On average, a pipe cleaner or sewer cleaner can earn between $30,000 to $50,000 per year. However, those with specialized skills or certifications may earn higher salaries. Additionally, those working in larger cities or with government agencies may also earn higher wages. **

One can exchange coins for banknotes at various places such as banks, currency exchange offices, and some post offices. Many banks offer coin counting machines where customers can deposit coins and receive banknotes in return. Some supermarkets and retail stores also have coin exchange machines that allow customers to convert their coins into vouchers or gift cards. Additionally, some charities and organizations accept coin donations and provide banknotes in exchange. **

You can exchange coins for banknotes at various places such as banks, currency exchange offices, and some retail stores. Banks typically offer this service to their customers, while currency exchange offices specialize in exchanging different forms of currency. Some retail stores may also offer coin exchange services, especially if they have a coin counting machine on-site. **

One can exchange banknotes for coins at a bank, currency exchange kiosk, or a post office. Many banks offer this service to their customers, and some currency exchange kiosks specialize in providing coins in exchange for banknotes. Additionally, some post offices may also offer this service to their customers. It's always a good idea to check with the specific institution beforehand to ensure they can accommodate the exchange. **