The Washer drain hose is a 1-1/4" O.D. (outside diameter). To be confident that no siphoning of water will take place, the drain plumbing must be a minimum of 30" high for Top Load Washers. Siphoning means the washer will fill and drain at the same time.
Washing machine hoses can vary in terms of length, shape, and material. Some hoses have straight ends, while others have a 90-degree elbow on one end so that the hose fits snugly against your laundry room wall. But they have one thing in common: they all sport ¾-inch female threaded fittings on both ends.
Diameter Outer: 15mm. 3/4''- 2.5m.
This drainage hose features one end with a 26mm I.D. elbow, most commonly used at the appliance end to avoid hose kinking. The other end features a 21mm I.D. outlet.
Size: 3/4 Inch BSP.
The drain pipe should be a minimum of 1-1/2" I.D. (inside diameter) to ensure proper draining. The Washer drain hose is a 1-1/4" O.D. (outside diameter). To be confident that no siphoning of water will take place, the drain plumbing must be a minimum of 30" high for Top Load Washers.
Hose diameters range from 3/8 inch, 1/2 inch and 3/4 inch. The bigger the diameter, the more water is delivered. The most common garden hose thread size is 3/4 inch.
The most widely used for pressure washer hoses are 3/8-inch fittings. 1/4 inch: Used for smaller pressure washers and accessories. 3/8 inch: The most common size for residential and commercial pressure washers. 1/2 inch: Used for high-flow applications or larger pressure washers.
Size and Flow Rates
Hose diameters range from 3/8-inch, 1/2-inch to 3/4-inch. In the United States, most standard garden hoses are 5/8-inch in diameter. The bigger the diameter, the more water is delivered.
Over time, these washers can wear out, crack or become misshapen. This compromised seal can then allow water to leak from the connections. Built-up pressure within the machine can also stress the hoses and lead to leaks (clogged drains can also be a culprit for pressure issues).
The primary reason for overflow woes often lies in a clogged drain pipe. During each wash cycle, lint and other debris bid farewell to your garments, hitching a ride with the dirty water. Occasionally, these hitchhikers can cause blockages that disrupt the smooth drainage flow, resulting in unwanted spills.
3/4 inch BSP female threaded connectors on each end (standard thread size for washing machine hose).
Regardless of their condition, washing machine hoses should be replaced about every 5 years to prevent a flooding emergency. Standard washing machine hoses are made of black rubber. Unfortunately, these hoses only last a few years and will eventually fail, causing one big mess and costly water damage.
Washing machine and dishwasher inlet hose connectors use a 3/4 inch BSP thread (measures about 1 inch with a ruler), see BSPT link at bottom of page for more information about British Standard Pipe Thread sizes.
Pressure is something you have to consider, especially if you intend to use your hose for outdoor cleaning projects. A 1/2" diameter hose might be fine for basic watering and such, but you might need a standard garden hose diameter that is larger to cover a bigger area or clean the driveway.
The most common drain pipe sizes are 1 ¼ inches, 1 ½ inches, and 2 inches in diameter. The size and type of sink will affect how big your drain pipe should be.
The standard washing machine drain size is 2 inches, and the minimum requirement is 1 1/2 inches. Modern washers typically require a larger drain, and you may need a larger drain if it's connected to your kitchen sink.
Drain hoses for domestic washing machines and dishwasher's are generally universal but the end fitting that connects to the machine sometimes differ. there are a number of differing “cuff” diameters (19mm and 22mm) but these can often be purchased separately and fitted to a length of hose.
Washing machines have 3 hoses: one for hot water, one for cold water, and one is a drain hose. This means there are 3 hoses that have the potential to burst or leak.
First measure the port hole diameter using a caliper. Next, measure the longest bolt hole spacing from center to center or measure the flange head diameter. Most fluid pipe and tube sizes in the United States are identified by dash numbers, abbreviations that make ordering components easier.
Garden hose fittings
The most common fittings are ½” (13 mm), ¾” (19 mm) and 1” (25 mm). The diameter measurement is taken from the internal diameter and excludes the external layers of the hose.
The sizes of hose connectors vary depending on the type of hose and application. Common sizes include 3/8 inch, 1/2 inch, 5/8 inch, 3/4 inch, and 1 inch. For larger hoses, sizes can range from 1 1/4 inch up to 6 inches.