How many gallons of water are used in washing one load?

On average, washing machines use 19 gallons of water per load, and the average household runs between 5 and 6 loads per week. Based on those figures, most washers use up to 5,605 gallons of water annually.
Front-load washers use an average of 12.5 gallons of water per load, while top-load washers average 19.6 gallons per load. Older top-load models manufactured decades ago use 40 or more gallons of water per load.

Possibly reading the meter incorrectly...

ck here...
https://plumbingsniper.com/how-to-read-a-water-meter/

My 1.5" water line to fill my pool puts out 12 gallons a minute
it would take 45 minutes running full out to put out 530 gallons.

Best to you.

19 gallons for a standard machine 7 gallons for a HE model

Depends on make model and size, but ballpark...

ENERGY STAR states that on average, an ENERGY STAR certified washer uses 13 gallons (49.2L) of water per load, compared to the 23 gallons (87.1L) used by a standard machine1. HE washers with impellers are designed to provide a thorough clean with less water.

How Much Water Does A Washing Machine Use - Whirlpool

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Conventional top-loading washing machines with center post agitators use about 40 gallons of water per load. Compare that to front-loading machines that use somewhere in the neighborhood of 20 gallons. Remember, that 40 gallons will require twice the energy to heat, too, which is one of the key costs of operating a washing machine.

https://home.howstuffworks.com/washing-machine-water-usage1.htm

https://prudentreviews.com/how-much-water-does-a-washing-machine-use/

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Around 5 gallons per FiLL more then 1 fill per cycle add up all the fills for the cycle that you use..that will give you the total water used...hope I helped thanks for voting...

the unit may due it due to the load size but the unit is only using about 2 -4 gallons of water depending on load, and only 16-18 gallons through the whole wash cycle, I hope it helps

When set on large load, it will use close to 30 gallons of water. On the smallest load setting, it will use right around 20 gallons. This is what makes the new front load washers look so good. They average around 4 - 6 gallons per load. Have a great day.

Depending on the age and size of your washer-Front loaders cut water use by nearly 40 percent. A typical top-loading washer uses about 40 gallons of water for each full load. In contrast, a full-size horizontal axis clothes washer uses only 20 to 25 gallons. That means that, by purchasing a horizontal axis model, you could save as much as 7,000 gallons of water per year. You also save all the energy you would have used to heat that water, meaning added savings for you and a big boost for the environment. These appliances also use less energy than conventional washers - approximately 50 percent less, according to the Environmental Protection Agency.

well the water is meter by the unit ,,but i can give you the read outs,,large loads 12 - 14 gallons..medium loads 10 -11 1/2 gallons small loads 9..these are tech estim...it depend on clothing being wash,,,good luck onthejob

may see some but not much..front loads only use 4-6 gallons and is adj as water is absorbed by clothes ..a typical top load will use 25 gallons or more per fill thats 50-55 gallons per wash verses 25-30 for front loads also you should see very few suds ..be sure to use HE detergents to prevent oversudsing