It is important to give the best possible start to the new crop. The turn-round period offers opportunities to clean the glasshouse and carry out essential maintenance prior to its arrival. Commercial pressures sometimes mean that the glasshouse is only empty for 2-3 weeks. However a good clean up in this period will pay dividends for the cultivation to follow. On this page you can find advice and tips on how to clean the greenhouse & irrigation system. You can also find information on how to store Grodan slabs following delivery. Information on how to place them in the glasshouse as well as instructions on how to cut the drain hole.