It will wash the waste of the septic system out into the drain field and plug it.
Do floor drains run to septic.
To me these lines should have never have been run to the septic.
A real bozo no no.
It takes two runs of pipe to make a septic system.
The waste pipe must maintain a minimum 1 4 inch per foot slope at every point along its path to the septic tank.
How to run a septic tank line from your house.
An ejector pump failure caused our floor drains back up and floods the basement.
You absolutely do not want to put the floor drains foundation water or gutter rain water into the septic system.
Similarly the vent pipe must maintain the same minimum slope toward the toilet drain.
Many basement floor drains tie directly to the home s sewer system but in some communities local building codes require floor drains to run to a sump pit where a pump lifts the water to the exterior surface of the house.
Basement floor drains don t get a lot of attention until the sewer backs up or the basement smells like an outhouse.
I recently learned that our basement floor drains are connected to our septic tank lateral field.