[. . . ] Conventional porcelain toilet bowls, wash basins and other products have a glazed surface that is easy to clean and resistant against most chemicals. Do not leave detergents on the porcelain surface for long, but rinse with water. [. . . ] Insert a screwdriver into the cistern lid sleeve as shown in the figure and unscrew the sleeve. This is achieved by moving the adjustment knob from the push button mechanism into the flush valve hole, whereupon the toilet flushes with 6 litres. First lift the toilet bowl into the proper place and mark the screwholes. Seal the bowl foot with elastic mold-proof sealant to prevent water penetration into the floor construction. Leak from cistern into bowl Remedy: Check that the flush valve has not become stuck in a suspended position (Possible defect in push button mechanism. Remedy: Shut stop valve and remove valve socket by opening the butterfly nut below it. There is always a slight water leak from the float arm notch when the arm occupies the lower, i. Remedy: Open valve socket, see 2C, remove litter from between the valve seat and the rubber membrane, see fig. There is always a slight water leak from the float arm notch when the arm occupies the lower, i. Leakage onto the floor Careless handling of the cistern may cause its bottom to crack. [. . . ] Using two screwdrivers inserted in the slot between the bowl and the cistern hoist the cistern. Tighten the cistern fixing bolts carefully in order to avoid cracking the cistern bottom. [. . . ]