Try getting the pump out of the pond. It should be plumbed in such a way
that it is easy to remove. Run the garden hose spray backward through the
filter. This should blow the clog free. Then put the prefilter foam back
on and restart everything. There have been several suggestions for other
prefilters than the foam on the news group, including making a clam shell of
the plant baskets, or putting the pump in a bucket of lava rock or other
filter material. Try a google for better explanation of these.
--
RichToyBox
http://www.geocities.com/richtoybox/pondintro.html


"stacy_friedman" wrote in message
om...
Hi folks. I just inherited a pond that's less than functional and I
need your help to avoid killing the fish.

Here's the story. I've got a decent-sized pond with about 10 koi in
it. There are two waterfalls powered by one pump. When I first
showed up, the pump and waterfalls were working fine. I just had a
guy out who installed one of those filter/UV-light units on one of the
waterfall lines and he told me it would clear up the opaque green
algae water. Meanwhile, the waterfalls have both stopped, and I
realized that the black plastic filter that should have been over the
intake was sort of floating around in the pond, unattached to anything
useful.

So I'm betting I have all sorts of leaves and perhaps some angry fish
clogging up the intake line. I can't see a bloody thing since the
water is opaque. I was hoping the UV light would fix that, but the
line got clogged before that happened. I want to (a) clean out my
lines so the pump will work again, (b) cover up the intake so gunk
doesn't get in it, and (c) have the UV light clean out the algae. I
want to do all this without killing my fish. Any pointers?

Thanks a lot for any help. My fish thank you too...

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