The Graf SEPTIC TANK 2700L uses a mechanical cleaning process. Septic tanks are used for the collection and settlement of domestic sewage for domestic dwellings without access to mains drainage.Mechanical septic tanks retain floating solids and solids that will settle in domestic wastewater. This is a purely mechanical form of treatment. Partially biological septic tanks have three chambers, offering not just mechanical cleaning but, due to the longer throughflow time, partially biological cleaning too.Comes with pedestrian cover lid.Benefits:Fully compliant, tested and approved to EN12566 Part 1 and SR66Light weight so can be installed in difficult local conditions without a craneReasonable purchase and installation costsLow maintenance, any cleaning work can be accessed through the shaftTanks can also be used as rainwater harvesting systems after thorough cleaning DownloadsGraf Carat Spec and Certification
