This all started with my observance of how I wash dishes. Was I wasting water? I thought so, but didn't know exactly. So I began to experiment, test out my theories, figure out how to wash dishes, save water, and wash them clean and sanitary. Hot soapy water, cold vinegar water.
I really had not paid much attention to how many gallons I used. After all, on the bill I am charged for units. But, I didn't know that a unit was 748 gallons.
In the meantime I thought about the size of my double sinks which measure on the inside as 14 1/2 in. x 13 1/2 in. x 5 in. For the sake of measurement of the water, I deducted an inch on the depth. five inches is where the top of my water line is. If I fill one side for washing and the other for rinsing, I have determined the most I would use is approximately 5 gallons. I filled up one side with my soapy water until there was enough room for my dishes, then I measured how much water was in there, about 2.5 gallon, so two sinks filled with that much water is approximately 5 gals. If I were to wash dishes every day that would be approximately 150 gallons per month usage. However, I was only once or twice a week. Washing once a week comes to 20 gallons a month. Washing twice a week comes to 40 gallons a month. This comes to 240 or 480 gallons a year.
So, then, I thought, I have two plastic wash pans somewhere. After a little hunting around, there they were crammed up against the back wall underneath the sink. Why did I buy them in the first place if I didn't use them? So, I dug them out and hoped the bottom would give the exact gallons they were supposed to hold. It didn't. I realized very soon that they didn't quite fit into my sink as the length was a tiny bit longer, so that must be why I sacrificed them. They do not lie flat in the sink. They are slanted at maybe 5 degrees or less. So I got a large metal pan out of my cupboard, and a large glass bowl. They suffice!