Instruct: Classify the given Amazon review as either positive or negative.
Query: Works well.

I've had this for over a year now. Works well. Requires an additional installation kit. The second winter I tried to use it, water would not flow. I took the solenoid apart and cleaned it, now works great. I have a lot of sediment in the water, so this may been to be a yearly maintenance procedure. I feel it is a bit wasteful of water. I have a valve on the water supply and can turn that down to save some water. I would advise you to do the same when installing.