Upon arrival to the home the customer stated he was experiencing a sewer smell located in the backyard of the home at first we walked the leach field to see if there was any water standing for a sign of a possible break in the pipe but after walking the Leitchfield nothing was broken at this time I return back to the septic tank where I removed the riser lids off the septic tank to begin my inspection, I did find out the seal that goes around the lid on the pump tank was missing and had fallen into the tank when the lid was previously reinstalled, at this time I informed the customer that and reinstalled that seal around the tank lid, after reinstalling the seal I put the bolts back in the lid because everything was functioning properly with the pump, and I also inspected the tank which everything is functioning properly as well, the customer did state that the toilet was bubbling but that was due to a double flushing when he rebuilt the toilets I’ve also taken a look at that the custo