I actually had the drain partially collapse on the back side. it seems like it may have been an air pocket or somthing ?
there is 1 6" thin wall Sewer drain siphon and 1 6" Heavy.
we removed the riser and it just fell over. it was done very poorly. around the riser they used topsoil and it was not welded or fastened by any means to the horizontal pipe.
soon as we get some dry weather here, im gonna get this filled in properly.
