Should B Faster wrote on 07/29/16 at 1:16pm:
I guess that's why they can't use Salt Water......if you did you couldn't dump it into the Catawba???
But you could pump it into a holding tank....heat it....steam off the salt then push it into the Catawba.
No Chemicals needed and the capital expense would be limited........Hmmmmm....I'd design this for the WWC in return for a discount on HD&R???
That is probably a big part of it, but not the only part.
Putting aside the engineering challenges for a moment, I imagine one of the major concerns is that saltwater might turn some people off to using the facilities in the first place.
Ok, now back to the engineering challenges...
Purging the water would definitely be more of an issue if it were salt water. Also, the current pumps, piping and filtration system were probably not designed for saltwater and it may cause excessive corrosion on the infrastructure.
I know the salt in typical saltwater pools is not noticeable, but those systems have very low salinity levels and were designed to use electrolytic plates to convert the salt into chlorine, on an as needed basis, in order to keep the water sanitized. So, that is kind of missing the point. A salt water chlorination system is really just a complicated and expensive way of adding chlorine to the water.
I am curious to know what salt concentration would be necessary to make the water uninhabitable to the amoebas, and know where that salinity level falls on a scale between "fresh water" and "ocean water". Based on some quick google searching, ocean water has anywhere from 8 to 14 times the salinity level of an average salt water pool.