oilet digester installation for 4 bedroom house at OSU . August 2017. No dislodging . clean water is discharged into the near by gutters . Otech Biotech Toilet digester system convert fecal matter into odorless clean water which can be released into the environment. Otech Biotech Toilet digester system full up after about 30-35 years almost maintenance free. Can be installed for all soil types and housing units.