Final answer:
To remove ice from a sight glass, the EPA recommends using a water-miscible solvent like isopropyl alcohol mixed with an alkaline detergent. For general glass cleaning, substances like methylated spirit or vinegar in soft water serve as inexpensive alternatives.
Step-by-step explanation:
According to the Environmental Protection Agency (EPA), an effective way to remove ice from a sight glass is to use a solution that consists of an organic, water-miscible solvent such as isopropyl alcohol and an alkaline detergent. These substances can break down and dissolve the ice without causing damage to the sight glass. Furthermore, for cleaning glass surfaces such as windows or mirrors, glass cleaners are commonly used.
They are often in the form of sprays or liquids and might contain a mild abrasive. A cost-effective alternative for cleaning glass is a mixture of soft water and either methylated spirit or vinegar, which acts as a homemade glass cleaner. When using any cleaner, it's important to apply it with a soft cloth or spray it directly on the surface, and then to wipe it down with a soft, lint-free cloth or duster for the best results.
To remove ice from a sight glass, it is recommended to use a glass cleaner that contains an organic, water-miscible solvent, such as isopropyl alcohol, and an alkaline detergent. Some glass cleaners also contain a mild abrasive. These cleaners can be sprayed directly onto the glass or applied with a soft cloth and rubbed off using a lint-free duster. A glass cloth and soft water mixed with methylated spirit or vinegar can also be used as an inexpensive glass cleaner.