For the price of this unit I expected higher quality. Its very loud. I bought it so I could hook it up to my 55 gallon reservoir, but it would not let any water in. I took apart the float valve and found the problem: the 1/4 nipple was sealed on one side so it was like a stopper. I snipped the tip and that resolved the problem. The nipple is just pressed in so theres not need to disassemble the entire valve, just pop it out. The unit does function but I would not buy this one again.