We are proud that the availability of the ELEX flue gas cleaning plants is very high and the expense for the maintenance relatively low. Nevertheless, in order to assure the functioning and the preservation of value of the plants, we recommend carrying out revisions. Normally this happens in one go with a total revision of the production plant. Depending on the industry, a revision is carried out after one to three years. We address ourselves entirely to the needs of our clients. In most cases our clients carry out the revisions themselves, under the inspection of our experts.