[Sproket]

Here is a pic of the made solution before you cut it.

http://www.chadandjodi.com/watercool/greenuv.JPG

even when cut it glows way better than anything I have seen.

I would have to see proof that it ruins a pump. So far it does not seem to hurt copper or brass.

There is of course one true way to find out. Just do it.

But I will do more research first.

Although a pump is just plastic and a magnet. At least mine is.
Remember a pond pump which is what most of us have is built for a salt water fish tank and outdoor use. There are much worse things in the water that will kill a pump. For one is calcium build up and that stuff is a b i t c h, but pump still runs good with it.

Also the drive staft can be replaced in a pump for very little money. Worse case.

Just thinking out loud.