DYNAWASH Automatic is almost 3 years on the market and we are still working on its improvement. In the past the DYNAWASH Automatic had just a single pump for pressurising the waste bottle (needed for aspiration) and for washing solution dispensing at the same time. The current upgraded version has 2 pumps for performing these functions separately. Therefore aspirating is more powerful and stable. Moreover it now allows so called overflow washing with a volume higher than the volume of the well. Check out the DYNAWASH Automatic video where you can find several detailed shots at dispensing and aspirating including the overflow washing.