Since Termidor SC is a non repellent, overmixing could negatively effect the treatment. We recommend to either add more water or start over using the recommended rate of 0.8 oz per gallon of water.
For the accurate recommendation to apply Termidor in a trench for termites, we recommend to measure the linear feet around the structure. 1 bottle Termidor will treat 60 linear feet of trenching.
You should not apply Termidor SC if it is going to rain the same day. It is best to wait until you have a few days of no rain in the forecast. Termidor SC is made to bond to the soil but it needs time to "set" and bond to hold up against a rain event.