I have seen a couple of people take near 90 days to pass a test. Although possible it is rare. It is not as rare though for people to take 30-60 days to get clean. With your body type and aerobic activities, you stand a good chance of passing after 30 days or less maybe. Anything is possible.

If this is your pre prelim it doesn't sound like a deal is going to be worked out on that day. If it is you may be subject to report to probation and test right away but that really isn't the norm. It seems most people who work out deals that go on probation have a few days before their first test once the deal is entered in court. Good to stop now though.

If you want to add salt to the sports drink I think most people recommend about 1 tablespoonful per quart. You may want to try a little less at first. For the Tums/Rolaids you can take about 4 every hour starting 2-3 hours before the test.