1. Top seam pre-cast concrete septic tank 2. 4" perforated discharge and vent pipe
3. Aggregate 4. Sphagnum peat moss pillows 5. Loose sphagnum peat moss 6. 4" solid vent pipe 7. Distribution plate 8. 4" to 2" inlet piping assembly 9. Insulation cover 10. 12" riser 11. Peat filter cover
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