In article ,
"Reel McKoi" wrote:

"earhtmother" wrote in message
oups.com...
So how do I go about this efficiently
and with relative ease. Pond is 15' x 21', sloping sides to
3.5'approx, 8200 US gal / 31200 L - Dug with EPGM Liner - ZONE 3
so a shop vac seems out of the question. Is there a "good & easy "
way or am I screwed.
=========================
I think you're "screwed." Our largest pond is 2000 and unless we drain it
down and remove all grunge the filter misses it clouds the water and filters
almost daily. What we do is remove the old bird-net, drain it down to the
largest koi's dorsal fin, net them out and drain it to the bottom. We hose
the grunge off the algae on the sides and the plant pots left in place,
leaving the algae untouched. The last little bit of dirty water and gravel
is sucked out with a shop vac. The settling tank is drained and hosed. The
pond is then re-netted, refilled and "aerated" for 24 hours, then the
regular pumps/filters turned on and the fish are returned to it. It's a
dirty all day job.

How often do you do this? I'm trying to have a pond about that size that
only requires a "sediment suck" on a minimal basis - without removing
anything.

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