Thanks for the info!
I'm currently own a gallon jug of "High-Yield" brand of weed and grass killer.
It lists 41% and the balance is "inert" material. Don't see anything mentioning a surfactant. Would it be listed on the label? Is it considered an inert ingredient.
From the little reading I have done, it seems that a product with the surfactant does a better job on the weeds/grasses.
If the product I now have is without the surfactant, I'll use it but won't get too close to the pond. Then I'll buy a product with the surfactant for some other areas ( Wildlife food plots).
Someone told me to mix some dishwashing detergent with the spray. Anyone tried this?