Toilet set too low for proper flow in slab floor
I have a situation where I have a toilet set on a slab foundation in a playroom behind the main house which is on a raised foundation. So the problem seems to be that the toilet was set too low in the original construction of the playroom to allow for proper flow to the main waste line.
The existing 1 piece toilet will not even flush down a piece of toilet paper and drains very slow.
Is there anything that I can do short of tearing apart the slab and raising the toilet and waste line to remedy this problem?