1.biogas digester 2.low requirements for cement pond 3.20 years' use life 4.finishend in 2 days 5.starting in 2 days food waste biogas digester Production technology:The household biogas digesters are manufactured by sophisticated, high frequent and intelligent machine by means of welding with PVC that contains more than ten kinds of aging-resistant, corroding-resistant, fire-resistant and strengthened special additives. Quality assurance:It is really like a bag, and bear high pressure. People can jump on it, when it is filled with air. (make sure your shoes are free of sharp things) In China, we have it insured against its quality, which means you can get payment of 1000RMB from the insurance company, if any damage irreparable caused to the biogas digester within 5years. So its quality is really good. DIY installation :Our biogas digester is really DIY installation. We'll send you owner's manual, drawings for building pit to hold biogas digester and installation video. With the help of them, you can definitely install the biogas digester on your own. It only takes about 2.5days to install a 8CBM biogas digester. So you can do it on your own.