Diy Garden Drainage Solutions . Slope the trench away from buildings and the soggy site. This diy water irrigation system follows the same basic plan as others and it is really easy to assemble. drainage solutions driveway 101warren Drainage solutions, Drainage from www.pinterest.com Fill the hole with water and leave it be for about four hours; For this to work, you. Now, line your trench with landscape or weed barrier fabric.