There could be puddles right on the surface of the yard.
Septic tank leach lines leaking.
Over time leach fields can build up sludge or tree roots can grow into them to form clogs which causes your septic tank to back up or leak into your yard.
Some of these reasons are heavy water usage buildup of grease and oil in the drain field and a leaking septic tank pipe.
A septic leach field also known as a drain field disperses wastewater from your septic tank and removes contaminants before it soaks deeper into the soil.
This way your leach fields remain efficient in digesting the solid wastes.
It should be noted that foul odors or wet areas do not necessarily mean a leaking or damaged septic tank.
That could be due to a leak of effluent aka liquid wastewater before it hits the drain field.
Flush the lime mixture down the toilet 2 or 3 times a day for 3 to 4 days until a total of about 5kg is used.
The pipes are surrounded by aggregate that.
These solid wastes should be dissolves because they tend to block the leach field lines resulting to a back up in raw sewage.
If you have oddly green grass healthy grass when all other vegetation is dead or dried up or especially brightly colored grass it could mean your septic tank has a leak in it or your lateral lines are receiving far too much wastewater downstream from the septic tank and are saturating your yard.
Look for dying or thriving grass as a sign of leaking pipes.
These sewer lines are typically laid in trenches and if the line breaks the trenches may be allowing the wastewater to travel towards the tank.
The sewer line leading to the septic tank may also be the source of the problem.
The leach field will stack up with water.
Clean out the tank and pipes a septic tank full of solids will overflow into the outlet pipe clogging the leach field and resulting in puddles on the surface of it.
One a septic system is approved engineers run 3 or 4 inch perforated drain pipe through the leach field at an appropriate depth for the soil conditions.
Once it escapes your septic tank it basically acts as fertilizer.
Faulty pipes if the septic tank becomes filled with nonbiodegradable material there is an excellent chance that your pipes will back up.
Moreover a faulty septic system design can also turn out to be a major cause for leach field wet spots.
Reduce the septic tank acidity by preparing a mix 0 5kg of lime with 10 liters of water.