... HIGH CAPACITY. SPRAY VEGETATION METHOD IN FASTLY GREENING THE ROCK SLOPES WOULD YOU MIND MY RECOMMENDING TWO MODELS? ... diesel engine and our special trinity pump. The power is strong enough to pump and spray ... the earthiness may be poor, like hard soil, acidic soil, arid zones, coastal dam, clay soil, even rock ... hydroseeder are easy operated. I could operate the KP60 after one of my seniors operated it ...