As with all linear discharges, the fissure channel has the advantage of having, whilst having an equal discharge section, a lower drainage capacity, i.e. the removal of water from the floor (without draining it) than a drain; but it has disadvantages that limit its use because of the difficulty in cleaning it, the delicate positioning in the rooms, problematical installation, the fact that they interrupt the continuity of the floor creating real joints which are often undesired. Of all the fissure channels it is the most hygienic (in fact it consists of tracts of channel ranging from 0-24 m which come together in a siphonable drain which can be siphoned and cleaned quite easily.