I loved finally pulverizing all of my ore & going through my collected concentrates FINALLY getting rid of the black sand once & for all. When you finally see your gold appear & then collect at the bottom of the cone... Priceless. All I could do was laugh to myself. My wife comes over & looks & starts laughing with me. Good times & Gold Fever.The supplied 1" of bilge hose is a little obnoxious. I am obviously going to have to go out & buy a longer hose & 1 hose rubber o-ring to make it complete, as other reviews have stated. Missing the o-ring, the connection leaked a bit as well as pretty substantially through the valve. I used mine in a bucket directly in my kitchen sink, but in an 18 gallon tote it would have to be 60% full to keep water above the pump since the hose is so short. With that said, this apparatus is to be used for ONE purpose, AND YEAH! YOURE GUNNA GET WET! So deal with it.Still, 5 stars! Its awesome & works quickly to separate your gold from your concentrates. This is what it is all about. I went through all of my concentrates from last year & pulverized a few rocks I had been toting around for more than 4 years. My wife especially appreciates those being gone.Ores Crushed:Flourine-Flourspar with heavy Iron & SulphitesQuartz MonzoniteCalaveriteFound a few specks of gold but nothing remarkable.Heavy crushed quartz 30- & pyrite cubes to a degree are maddening to get out of there though. It persists. I recommend if you're running ore concentrate & not alluvial black sand concentrate to further screen to 50- and maybe even 100-.For my black sand concentrates, adding about 8oz of concentrate at a time took less than 5 minutes elapsed before the black sand was gone. I have a bunch of incredibly fine gold & I am extremely happy about it. Even with proper dosage of JetDry the finest of gold dust still rides up against the upper flair though, eventually making it's way over & into the bucket below. I haven't figured that one out just yet.If you've been on the fence for this one just snag it up.