I been looking at the septic rises like the polyloc and a few others. So did you have an issue with the tank absorbing water from the lids. My tank is in a low lying area. It doesn’t make any sense where they installed it. I’m assuming it saturates the ground by the tank. The one concern with risers, say I install two risers one one the solid side and the other on the gray water side. Will that cause even more cavity to fill with water if it is in fact the leach bed back filling the Tank and not the lids leaking. By installing the risers at grade they will be almost level with the slab of my house. I don’t want to cause any more back pressure to flood out my house.
