I have the experience of working with 2 of them, an older model and less than 3 month old model. The older model had belts that constantly slipped so it didn't always function properly. It was also VERY LOUD. The new unit that is being used on a maintenance account, not my idea, has a better belt but is still very loud!!! In fact, as soon as they give me the funds it is being replaced with a pair of
tunze streams. The only pro is it moves a lot of water in 2 places because of the different slots. Hope this helps you with your decision.
