| It's surprising how much water individuals use each day. Most survival say 1 gallon per person per day. But we use in the US an average of 332 billion gallons per day for 330 million people is 1000 gallons per person per day. Californians use 12,000 gallons per month or 400 gallons per day. I've bought an electric water pump from Temu for about $10. I use this with a gallon of water near my sink to reduce the amount of water used. Water usage Saving Water |