In article ,
says...



2 Tablespoons (one coffee measure) should be added when in fresh or
brackish water...you shouldn't have to any in salt water.

Apparently you don't have the manual for the Lectra/San, If you did,
you'd know that there's a "low salt" indicator light that lets you know
whether extra salt is needed. ...and unless you are in fresh or brackish
water, you shouldn't have to unless the electrode pack needs
cleaning...directions for doing that (which does NOT require opening it
up) are also in the manual, along with operation and maintenance
instructions and a trouble-shooting guide. So I suggest you download and
print one, and keep it on your boat for future reference:

http://www.raritaneng.com/pdf_files/.../L270v0404.pdf

I do have the manual but it is a very old unit. There is no low salt light.
There is a meter that shows the current draw restated as effectiveness
(green zone) and pre-treatment and treatment lights. The meter is defective
and needs replacing.

Thanks for the URL. I will check it out.