If you do bulk water vending of potable water, you should have an air gap Cross Connection Control Device. This insures a hose from one tank doesn't contaminate the next one. Here is a device that provides the air gap, attaches to a hose to be able to move around, and has lugs at the bottom to secure the bottom ring to the truck tank fill port. #CrossConnection #AirGap #BulkWaterVending https://pos.li/2ky8xb https://www.instagram.com/p/Cb-AbVOO4xl/?utm_medium=tumblr












