Re: Aquatic Plants Digest V2 #29
>You can drill a hole in a plain rubber stopper. You might have to run the
>drill bit in and out of the hole a few times, since the rubber will tend
>to close up after you have drilled. And you don't want a pristine hole,
>anyway, just something you can jam a piece of rigid tubing into.
Thanks for reminding me, Tom. The chemical supply store told me you can
drill a hole more easily in a rubber stopper if you first freeze the
stopper. The stopper should be stiff. Then drill away.
San Francisco, CA, USA
gtong at sirius_com
"Every infinity is composed of only two halves."