Marguerite, You can always use the "waste" water to water something else which is not sensitive to dissolved minerals ... mine went to support a bog garden and the lawn... --Albert ----- Original Message ---- From: Marguerite English <meenglis@meenglis.cts.com> To: Pacific Bulb Society <pbs@lists.ibiblio.org> Sent: Fri, October 2, 2009 1:52:21 PM Subject: Re: [pbs] Hard water on bulb containers in greenhouse. Thanks, Albert. The reverse osmosis filter sounds interesting, although I didn't realize there was wastewater associated with it. That's helpful to know. Albert Huntington wrote: > Marguerite, > > I have some experience dealing with hard water when