SWC high salt when solar turned on

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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.

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Perhaps a call to Goldline Tech support is in order. I have found them to be very good at answering questions!

Thanks waterbear

I did call them and they said that the cell can only handle water temperatures less than 104 degrees. If the water temp exceeds that, the cell will read high salt/amps. Also, she said that it should reset fairly quickly which I have not confirmed. Next time it happens, I will see how long it takes to reset.

So Sean was right after all.

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Originally Posted by mas985

So Sean was right after all.

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Had a feeling he was...the guy knows his stuff!