The leach line is just under the surface. The hose is from a sump pump on the other end of the leach line. I used the pump to circulate the effluent until the hydrogen peroxide was mixed. Then put the caps back on. To add the cleanouts I needed to dig a little over a foot deeper. To stay dry I would I leave a little dam near the efluent. I'd get everything out I could without breaking the dam. Then I finished it off with a post hole digger. I found I could use a fence post driver to lightly pound the digger in. This may seem like needless info, but if you find yourself doing something similar, you can appreciate it. I measured how far the cleanouts extended the lines to determine the center of the hole.