On 3/16/2014 7:28 PM, Home Guy wrote:
> I don't want to blow the debris.
>
> I want to collect.
>
> To VACUUM it up.
>
> Walk-behind lawn mowers (with bag attachment) are collection devices -
> not blowers. But their efficiency at picking up dense material (like
> sand, grit, gravel) is dependant on how much (or little) space there is
> between the deck and the ground surface. Too much of a gap, and even
> with a bag attachment they will throw more of the sand/gravel to the
> side instead of picking it up and putting it in the bag.
I should read the next message, eh?
I suspect your grass catcher bag will
rapidly be clogged with dust, and that
will choke off the air flow.
If you get the mower deck too close to
the ground around the edge you won't have
any air coming in.
The sealed bottom deck (with slot and brush
as you describe) might allow air inflow, while
reducing scatter.
I've never built one, but it sounds like
it's got merit.