Sporty's has come out with an innovative fuel tester that lets you drain multiple sumps without having to empty the tester after each drain. The MultiSump allows you to test a sump, check it for impurities and then "dump" it into the larger reservoir. At the end, if all's clean, you can put it back in the tank. The MultiSump sells for $24.95. For more details, visit sportys.com.