> 4) Can the solution be topped up with more Soda or is it a one-shot > process? > > I've never needed to, but suspect one could. Just add more water, a > bit more > washing soda when it doesn't feel "soapy". Don't see why it would need to. the soda's not depleted in the process. Other than what's splashed or taken out with wet parts. John Culp Bristol, Tennessee, USA