I’m new to this forum, and needing advice. I’m in the process, of taking over my parents home. They have lived in the home since 2001. Well I have noticed that the leach bed isn’t draining very fast. It was installed by my grandfather and father, and to my understanding, when they dug, to put in the leach bed, ground water kept coming up. So they just put the leach bed sections, in over the water and sand. There’s no gravel under it. There’s no distribution block either, just a line ran from tank to leach bed from the tank. All drain lines from leach bed are clear so I’m sure the leach bed is what is not functioning properly it’s full of sand but the drain openings are all clear. What can I do ????