Since the day this was installed in our newly renovated bathroom it hasn't functioned properly. It needs to be pushed with a lot of force, or jiggled, or pulled, etc, etc, in order to get it moving up and down. We've had it for 6 months, and now it won't open or close at all and needs to be unscrewed to have the water drained. The price for this item is mind-boggling given how poorly it performs. I wish we had done more research before purchasing this product.