Bests & Worsts Reviews from Amazon

I have had the Oasis for three years and have tried to use it three times - the first time it worked perfectly. The second time I came home to dead plants! It seems that the valve can get stuck - the electronic timer drives a green coil (electro magnet) that opens and closes the water valve. If it is working you can hear it make a "thunk" noise when you move the switch from off to 10. No thunk means the valve is stuck (assumes a new battery). The green coil can be pulled off by removing the machines bottom (just pull it off) and unscrew the nut holding the coil to the valve. A strong magnet can then be moved along the valve to make it open and close. After I did this a few times I reassembled the machine and it is working again - but I don't trust it! I suspect the very hard water here in the Southwest is making the valve stick. Use distilled water or don't buy or buy a new one every year!