No need to buy a bigindustiral or HD vac. Just make sure you have
one that is capable of working with liquid, ad be sure to setup the
vac for use with liquid pickup as well. I have a few shop vacs, one
you have to remove foam and pleated filter cart, the others you do not
have to remove them....

Personally if the mulm is that deep I would catch fish and place in
drums or tubs, save as much water undisturbed, pull filter without
disturbing it for now, and then drain it and muck it all out without
scrubbing the sides etc, just more or less use a broom etc to push it
in a pile an duse buckets to remove it.....reuse the removed water,
add more water to proper level, add dechlor and then add filter and
fish back in.....Leave any alage growth on sides etc in place and only
remove the mulm from the bvottom. 4" is pretty fair amaount of depth,
then again I do not know how big of an area you have either so that
also makes a difference. If its huge, draining is faster, if small,
suck it up.


..On Sat, 5 May 2007 20:43:26 +0100, "Sky-Catcher" bobhope@nohope
wrote:

Hi,

Just mo ved into house with old pond in back yard - not cleaned in many a
long year - It has thick slurry on the3 bottom to a depth of about 4". I
sthere a proper heavy duty vac that anyone can recommend ofr getting this
stuff out?

Sky




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I forgot more about ponds and koi than I'll ever know!