I thought of doing that, but decided to flush with clear water first. What you suggest would work for scale and calcium, wife does it all the time with the coffee pot. I don't feel it would work for algea if that is what this it.

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81 Mercedes 300SD 289k.......SOLD
82 Mercedes 300CD 252k......slow ride

82 mercedes 300 SD...mi Unknown
83 Mercedes 300D ????ksniff..gone too
84 Mercedes 300D 148k........SOLD
85 Mercedes 300TD 386k and holding some one elses project