Last weekend I started up the SWG on our brand new pool (Jandy FusionSoft 1400). Per the Jandy instructions I first checked the salinity readout on the system which was 1.3 g/L. So I calculated out and added 2 g/L of salt (100lb in a 6100 Gallon pool if anyone want's to check my math). Sure enough this brought the readout to 3.3 g/L, right in the middle of the 3.0-3.5 g/L recommended range.
However that initial level seemed rather high for a pool that was only filled 6 weeks ago from city water (and chlorinated with bleach while we waited the required delay for the plaster to cure). So I ordered the Taylor test kit and the water actually tests out at 2.8 g/L.
This isn't terribly surprising as I know the SWG's readout is really just a conductivity reading, and I'm sure our Colorado River water has lots of electrolytes in addition to NaCl. It also occurred to me that the conductivity may well be the more important parameter to the SWG's operation than the actual NaCl concentration.
So the question is: Should I add more salt to bring the level up something in the 3.0-3.5 g/L range, or should I leave it as it. If the former is there some sort of calibration that should be applied to the SWG so that its readout agrees with the wet-chemistry test.
However that initial level seemed rather high for a pool that was only filled 6 weeks ago from city water (and chlorinated with bleach while we waited the required delay for the plaster to cure). So I ordered the Taylor test kit and the water actually tests out at 2.8 g/L.
This isn't terribly surprising as I know the SWG's readout is really just a conductivity reading, and I'm sure our Colorado River water has lots of electrolytes in addition to NaCl. It also occurred to me that the conductivity may well be the more important parameter to the SWG's operation than the actual NaCl concentration.
So the question is: Should I add more salt to bring the level up something in the 3.0-3.5 g/L range, or should I leave it as it. If the former is there some sort of calibration that should be applied to the SWG so that its readout agrees with the wet-chemistry test.
