The present invention relates to a multiwell filtration plate system formed of a multiwell filter plate, an underdrain, preferably having spouts as the outlet from the underdrain and a collection device such as a collection plate and the use of a mechanical device such as a fixture in the form of a post, a ramp, a rib, a spout protector ring and the like formed in the collection plate wells or on the outside of the underdrain or both for contacting a forming pendant drop formed on the spout of the underdrain and transferring it to the collection plate well.