Services EV Charging Shop IPT Advantage Contact ORDER PARTS ONLINE OR CALL 1-800-323-TANK (8265) HOME COLLECTIONS WATER FINDING PASTE Water Finding Paste $10.00 Sargel Water Finding Paste Sargel Water Finding Paste - Turns bright red when it comes in contact with water. Works with gasoline, gasoline/ethanol (E10, E15, E20) blends, biodiesel, diesel, hydrocarbons, fuel oil and jet fuel. Shipping & Returns Terms & Conditions Privacy © 2021 Interstate Pump & Tank. 901 Niagara Street, Waukesha, WI 53186 | Phone: 1-800-323-TANK(8265)