Does a washing machine drain hose need to be elevated? - Quora
plumbing - How damaging can a 3 meter (10 feet) long drain hose be for the washing machine pump and microorganism growth? - Home Improvement Stack Exchange
plumbing - Is this washing machine drain hose too long/ installed wrong? - Home Improvement Stack Exchange
Does a washing machine drain hose need to be elevated? - Quora
pipe - Washing machine drain hose too long? - Home Improvement Stack Exchange
Do you have to have a p-trap on a washing machine drain? - Quora
LG Front Load Washing Machine Drain Hose Replacement - iFixit Repair Guide