4. Combination Systems. sometimes the best approach is to apply a combination of systems in lieu of just one. Resin grouting could be use to stem high water flows followed by a tanking or drained cavity system. A de-watering system with additional waterproofing to the walls OR floor can sometimes be relevant. Using perimeter underfloor drainage divides the walls and floor so that different systems can be applied to each, either different varieties of membrane or different universal systems, such
