"Pinkpggy" wrote in message
...
We didn't put in the undergravel filter outselves. We had it done. So
thats
why I have no idea what size holes are in the pipe itself. I do know they
put
a covering over the pipes to help filter also.

Hi,
Basically the size of the holes in the covering then, are the issue. Is
there anyway to clean them without taking them out of the pond?
-_- how
no NEWS is good