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CONCRETE A pool base consisting of a 4,000 ib mix (small stone, Portland cement and water) will provide a permanent bottom for your pool. There are, however, some factors that should be considered prior to selecting a concrete bottom. First, it is imperative ihat you have professional masons available to do the troweling. This type of mix seTs up rather quickly and must be done correctly the first time. It is necessary to have a finish smooth enough so as not to harm the liner. Once the bottom has been finished, it is recommended that the entire area be checked for smoothness. Any sharp areas must be eliminated and then the�vhole bottom should be washed thoroughly before instailing the liner. Of course, a main drain with a hydrostatic relief valve should be insta{led as part of this bottom. VERMICULITE Another type of hard bottom material is referred to as Concrete pool base aggregate. This material provides a nonabrasive surface for the liner while providing a hard surface resisting the formation of pockets or foot prints. Mixed with water and Portland in a paddle type mixer, it should be applied according to the manufacturer's instructions. Because of its characteristics, it is recommended as an acceptable base in unstable ground conditions (clay, high water table). This type of base would be more expensive than the sand and cement mix. CAUTION: When troweling vermiculite, do not try to attain a smooth surface. Too smooth a surface will cause the (iner to slide. TROWELING OF POOL BASE Start in the hopper end and place the pool base of your choice on the slopes, in preparation to troweling up to the 2" mark on the panel bottom. Once the slopes have been troweled, proceed to the shallow end and continue troweling. Next, trowel the breakover, working to the bottom of the hopper. Finish troweling the bottom of the hopper and exit the pool. INSTALLATION OF COPING STANDARD COPING All Standard CP2 Coping corners are pre fabricated. A 3/8" opening is acceptable as cap will cover all joints. This coping is affixed to the panel with Tek Screws every 12". TEK SCREW � LINER SNAPS IN THIS GROOVE � STANDARD COPING