B-type ejectors differs in two ways from the In-line ejector. The motive water is coming from the end and suction is created from the side and it is equipped with an inspection cover. Ejectors of all makes and designs may be clogged up by particles. Whereas soft matter normally will pass through the ejector solid particles larger than the gap between the nozzle and the throat will get caught in the narrow passage and eventually cause the ejector to cease pumping. With Ellehammer B-type ejectors the foreign matter can easily be removed through the inspection cover.