"If you still are carrying buckets of water duriing your water changes, you need to get this product. It's easy to hook up to the sink and works fast in siphoning and filling your tank back up. My only complaint is that I had to replace part of the facet adapter only after several months of use because the groves wore out. The good news was that I went to my local hardware store and was able to find it in a steel version rather than plastic version it came with."