Hey Guys and Gals. I am working on another hydroseeding job and wanted to seek some knowledge from some of the experienced guys out there. I have a lawn that is currently part fescue and part bermuda and the customer is interested in hydroseeding centipede. I know once establised that the centipede will overtake the fescue and most likely the bermuda, but my question is can i hydroseed an existing lawn with out having to go in and kill off everything and till it up? I know that tilling it up will get me much better seed to soil contact, but I am tring to keep this one simple. Thanks in advance for the help.