The ideal height for a washing machine when placed on the floor can vary depending on the manufacturer and the specific model of the washing machine. However, in general, the standard height of a front-loading washing machine when placed on the floor is around 36 inches (91.4 cm). For top-loading machines, the height may be slightly lower, around 36 to 42 inches (91.4 to 106.7 cm), depending on the model.
Regarding the height of the faucet, it is not necessary for the washing machine to be at an equal height. In fact, the height of the faucet or the water inlet can be lower than the washing machine. The reason for this is that most washing machines have a pump that can push the water into the machine even if the faucet is lower. However, the faucet should not be too low, as that might cause issues with water flow and drainage.
In some cases, if the water inlet is significantly lower than the washing machine, you may need to use an extension hose to connect the two properly. Make sure to follow the manufacturer's guidelines and recommendations regarding the installation and height of the faucet relative to the washing machine.
If you're unsure about the specific height requirements for your washing machine and how it relates to your faucet, it's always best to refer to the user manual or contact the manufacturer for guidance. They can provide you with precise instructions to ensure proper installation and functionality.