"Gill Passman" wrote in message
...
Koi-Lo wrote:
Sorry but I haven't had any problems like that. I also use lavarock but
it's harder to clean as it clogs.
I've had the screen come up and not stay in the pots so have switched to
plain small pea gravel. The pea gravel's weight also keeps the filter
pot in place.
========
So if I understand correctly I could probably use the existing pump (if it
still works) and create my own cannister filter equivalent. The other
alternative is to go out and buy something which I may well have to do if
the old pump doesn't work. In which case I probably would go for something
like 2pods suggests and save myself the work.

I'm not sure what window screen material is

It's used to keep flies out of your home when windows are open. You may
have a different name for it in the UK.

but I'm guessing it is a
type of foam which would work great as a pre-filter. Then combine it with
pea gravel or similar for biological filtration...then finish up by
pumping it up to the veggie filter. Have I got the concept right?

It's just thin screen used to keep insects and bugs from coming in an open
window. It' keeps crud from getting into and clogging the guard, the
impeller and it's well (where it inserts). Or if the other kind, from
clogging the guard over the impeller. The gravel acts like a bio-filter.
No need to pump it into a plant filter. You can have a sprinkler or
fountain head on top of the outflow.

I'm guessing that the bio-load of 3 shubunkin won't be excessive in a pond
of this size and that planting it up will help with things...

And the good bacteria grow on the liner and plants as well as in the filter.
Three GF are a small load in a 100g pool/pond.


--
Koi-Lo.... frugal ponding since 1995...
Aquariums since 1952
My Pond & Aquarium Pages:
http://tinyurl.com/9do58
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