Re: SWC high salt when solar turned on

Originally Posted by
mas985
There are really two conditions when this happens.
1) When the pump first turns on in the morning, 11am, there is air in the solar panels and the flow switch does turn off as the air pass through the cell so that does seem to work ok. Given that there is no water in the panels, at least that I know of, the only explaination for the high salt in this condition is that the water is very hot going through the cell. I will verify this later when I heat up my spa to see how much the salt reading changes.
2) After the panels have been on for a while and then turned off due to a cloud or wind and then turned on again later, there is very little if no air in the system so that is why I did not see the no flow indicator or I think I might have missed it. High salt comes on in this condition as well.
I was thinking at first of condition #2, so that is why I thought that the salinity was changing in the panel. However, condition #1 would not happen if it was just the salinity, unless water or salt was left in the panel. That is probably unlikely.
Therefore, as Sean orginally pointed out, temperature is probably the culprit. I am still looking for a good reference relating temperature, salinity and conductivity.
Perhaps a call to Goldline Tech support is in order. I have found them to be very good at answering questions!
Retired pool store and commercial pool maintenance guy.
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