Someone suggested I auction it on EBAY. Does anyone use it and is it a
good
place to sell water garden equipment.
or should I just discount it on our own website.

My husband uses EBay to get a lot of 2nd-hand photography equipment. It
seems to work pretty well, we have had no problems in around 20
transactions.

Yes, I use ebay, it is great, well worth you giving it a try. You could
always tip us off when you put things up for auction
kate