The closed tank is not a treatment but only the collection of the toilet water. Closed tanks are not recommended for mixed household wastewater.

Today, closed tanks are normally prohibited unless you have very low-flush toilets such as vacuum or Ecoflush.
All to reduce transportation by sludge truck and for the treatment plant.

Level alarms are required, you can find these here.

Choose as large a tank as possible, it pays off quickly in emptying costs.

In many municipalities, the maximum distance that the sludge truck can pull the hose is 10 meters to the tank, which means that you need extra suction pipes.

The groundwater level must never exceed the bottom of the lowest tank penetration, which is usually the outlet pipe (penetrations are only sealed from the inside)

Closed tank and septic tank are the same thing just different names

For advice! Call us 010-490 10 50 or email info@avloppscenter.se

Shop directly as an individual or through your contractor.