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Pond filter issue

Subject: Pond filter issue
by shreked on 21/5/2019 18:09:52

Hi

I have a oase biosys filter and I have taken the UV off thus leaving 1 hole in filter in which water can escape. The other one has the water supply in.

Does anyone know if you can get something that has a lip in the middle and a screw thread on both sides of it so I can screw from the inside to hold it to the filter and screw the other side to a blocking cap.

Also does anyone know the size of the hole as I think at moment it is 1 3/4 inches??