Basic structure and principle:

1. Sedimentation and Corrosion Zone

Domestic sewage is precipitated, and substances with higher specific gravity sink to the bottom of the pool for septic treatment, while the parts with lower specific gravity float on the upper layer of the water surface and can be fished out from the cleaning port. At the same time, the wastewater produces a fecal-stripping effect, which degrades some of the complex and difficult-to-decompose organic matter into easily decomposable substances.

2. Partition area

Converting direct flow water into circulating water increases the retention time of sewage in the pool, allowing the sewage to stay in contact with the sediment sludge in the pool for a longer time, producing more microorganisms to decompose and consume the sewage.

3. Filter treatment area

Using advanced biofilm treatment technology from home and abroad, after a certain period of cultivation, a large number of microorganisms multiply on the filter surface to form a biofilm. The sewage comes into contact with the biofilm on the filter surface, and the organic matter is intercepted, adsorbed and decomposed by the microorganisms to achieve sewage purification.

Key Features:

1. Volume 1.0-1.5m3, in line with the standard of "o/swY011-2015 Three-compartment Septic Tank". The distribution ratio of the three compartment volumes is 2:1:3

2. Optimized structural design, mature process technology, high product strength, acid and alkali resistance and corrosion resistance.

3. One-step rotational molding, no need to connect two parts, solve the leakage problem.

4. Save labor, save time, and have a long service life.

Installation Instructions:

1. Dig a rectangular pit with a length of 2 meters, a width of 1.4 meters and a depth of 1.2 meters, and use 50mm concrete as a cushion layer.

2. Lay the three-compartment septic tank horizontally, connect the septic pipe and the exhaust pipe. The exhaust pipe should be 20-50cm higher than the toilet house.

3. The backfill soil should be half dry and half wet, and compacted layer by layer until the ground is level to prevent the urn from collapsing and tilting. The backfilling should be done in two steps: the first backfill is half to 0.6m deep. Sprinkle a small amount of water to compact and level, and then fill the soil twice until the ground is level. The three outlets on the top are 5-10 cm above the ground, and the outlet cover is reinforced with cement mortar to prevent seepage and fixation.

4. The toilet should be installed parallel to the left and right, and the front should be higher and the back should be lower (5° inclination) to ensure that no water accumulates after flushing. The distance between the back of the toilet and the wall should be between 20-25cm. In cold areas, an insulation layer should be added to the outside of the toilet. First, compact the area around the squat toilet with fine sand, and then level it with 2 cm cement mortar.

5. When installing the water storage barrel, the outlet pipe must be placed naturally, and it is not suitable to be laid in an S shape to prevent water from accumulating and freezing. The water storage barrel should be placed behind the toilet. When installing the indoor water storage barrel, the barrel cover should be 10cm below the ground, and the barrel cover can be covered with insulation materials. When backfilling, the water storage barrel should be filled with water first, and then filled with soil and compacted.