Pick up some creatine supplement if you are gonna dilute alot. Best to start taking a couple of days in advance because it takes a little while for the body to process into creatinine. Lately on the forum it has been stated that it can metabolize in as little as 8 hours, but there's no hurt starting 48 hours in advance. ((That's nice to know for people reading with a test in the morning!! They still have a chance to get some extra creatinine in their diluted urine.)) And it also proves the theory that these "magic" potions aren't very effective with their creatine content, because their advice is to drink, dilute and go test, which doesn't give enough time to manufacture into creatinine.

Read the dilution sticky. You don't want to drink too much water, and substituting some of the liquid with gatorade will help with the specific gravity. Let us know how your hometest comes out. Test your first morning urine. 43 days clean is a long time, even with the lower threshold on the test.