I would have given this more stars, but unfortunately I read the reviews after I purchased the Bona Mop. At first I loved it, but after a couple of weeks, mine like many of the reviews, began to get clogged up and not spray well at all! Fortunately I have a handy husband and here's what we did, take the mop fluid bag off, stand your mop upright into your sink, run hot water through the cavity of the unit, then take the cap off the mop fluid bag and run hot water onto it, push down in the center of the cap, replace and your spray will work like it's brand new. Having said that, Bona should have indicated in the instructions directly on the mop to do that with some regurlaritity.  I understand mop fluid can get "gunky" after a while, but if you know this ahead of time, it is helpful to the consumer.