I need some advice on this test. Is the test complete when it "just" turns red? Or, when it stays red? I get to drop number 7 of R-0009 and it turns red and back to green. Drop number 8 turns red and then clear. Drop number 9 goes red and stays red.
I think it washed out the overflow pipe. I did the same a few days ago. Started with 55 and added enough to go to 65. Then it rained the next day and I ended up at 50.