On Thu, 19 Feb 2004 23:32:52 -0500, Glenn Ashmore
wrote:

There is a limit to how much chlorine an activated charcoal filter can
absorb. If the charcoal has not been changed in 8 months of flushing
with city water it will make very little difference.

On your trial sail take a TDS meter ( I will loan you one if you don't
want to spring for the $50) and make sure to try out the watermaker.
Measure the output. If it is less than 75% of the new spec or the TDS
is higher than 400 ppm start negotiating....

As usual, Glenn is on the money.
A TDS (total dissolved solids) meter with digital LCD display is now
to be had on line for $20 and shipping. Search on HM Digital.

These things are easily verified by a dip in distilled water, and the
domestic water supply. (round here, the latter is at the upper limit
of EPA acceptability) with readings of 0 and 500 ppm or mg/liter
respectively.

Brian Whatcott Altus OK