The added layer of topsoil raised another issue:
how do we keep it all from washing off the steep clay slope
in a Spring thunderstorm?
The solution
(we hope)
was to add extra
tackifier
to the hydroseed slurry and give it more holding power.
A special machine sprays the slurry onto the slope.
The ugly gray-green dye makes it easy to judge where and how
much slurry has been applied;
we did not intend to make it look like a lawn!
