Over time holding tank systems can be plagued with a build-up of anaerobic sludge in the piping system and tanks, with the resulting unpleasant odours and dangerous fumes, sometimes venting into passenger spaces and dock areas. Noflex Digestor liquefies the sludge and neutralizes odours instantly on contact with waste. This solves smell and solids build up problems, facilitating easy and complete pump out of the system. If you want clean pipes and a toilet that doesn't smell you need to use this.