Installing hot tub must need some preparation on your part. Some preliminary installations might be needed like the suctions in the floor of the tub. One or two suctions can be installed and if you are going to install two suctions then they must be separated by at least 3?. The location of the suction should not interfere with the chine joists. Care must be taken to ensure this. The holes drilled must be on one board and male thread should be fitted through one of the holes. Female threads should go to the suction body. Do not over tight the nuts. Hand tightening should be enough. The two bottom halves should be slid on the chine joists and pushed tightly. The stave must be aligned properly at the bottom. Make sure that it does not fall off. Also make sure that the band also does not fall off. Tighten the nuts in such a way that it does not fall. Use an electric hand plane or belt sander to level the top and then install the bench.