Hayward aqua-rite

parisdpm

Bronze Supporter
May 26, 2013
41
Union City, TN
My hayward reads salt level as 4000. I've tested, and had pool store test in past 24 hours, both came out nearly the same at 2583-2600. I've tried the calibration method many times. It starts out at 4300, and never goes down past 4000. I have a new cell I put on a week ago. It shows its producing chlorine. I called Hayward today, and they said they would have a tech call. No one called back today. Any thoughts are appreciated.
 

parisdpm

Bronze Supporter
May 26, 2013
41
Union City, TN
Thanks. That's a different technique. So I started at 4100. inst salt said 3600. next readings were 82, 25.5, 7.07 and 95p. box is set for t-15. after doing this it now says 3600,
 

JamesW

TFP Expert
Mar 2, 2011
14,560
Ok, it's working correctly. 3,600 is probably correct.

Note that the high salt warning light comes on if the amps get to 8.0 regardless of the actual salinity.
 

parisdpm

Bronze Supporter
May 26, 2013
41
Union City, TN
It went right back to 4100 again today. Hayward service never did call back. Does it read just salt? Lets say your phosphate is high, is it actually adding both of these dissolved solids?
 

JamesW

TFP Expert
Mar 2, 2011
14,560
What are the diagnostic readings?

Check the readings, then move the switch to off for a minute, then back on and recheck the readings, then do it once more.
 

parisdpm

Bronze Supporter
May 26, 2013
41
Union City, TN
-3600, 82,25.1,6.83,95...the reason I ask about salt/phosphates: If I add up salt plus phosphate from pool store reading=4100, which is what my hayward likes to display
 

JamesW

TFP Expert
Mar 2, 2011
14,560
The Aquarite only measures chloride.

The instant salinity is 3,600 ppm. So, I don't know why the average is 4,100.

Switch it off for a minute and then back on and recheck the readings.

When you switch it off and then back on, it reverses polarity. The polarity in both directions should be about the same.

Note that phosphates are reported in parts per billion. So, a reading of 500 ppb is only 0.5 ppm.
 

parisdpm

Bronze Supporter
May 26, 2013
41
Union City, TN
after turning it off a few times, waiting a few mins, back on, instant salt wants to jump back to 4300 and 4200, rest of the numbers basically the same
 

JamesW

TFP Expert
Mar 2, 2011
14,560
The instant salinity is the number with the - sign in front of it. The default display (before pressing the button) is the average salinity.

Are you saying that the instant salinity is 3,600 in one polarity and 4,300 in the other polarity?
 

JamesW

TFP Expert
Mar 2, 2011
14,560
The salinity in both polarities is usually within about 100 to 200 ppm of each other.

It would be odd for the salinity reading to be 600 ppm different. The average salinity is just averaging the two. So, it should be between the two different readings.

Did you get a genuine Hayward T-15 or a generic cell?
 

parisdpm

Bronze Supporter
May 26, 2013
41
Union City, TN
The salinity in both polarities is usually within about 100 to 200 ppm of each other.

It would be odd for the salinity reading to be 600 ppm different. The average salinity is just averaging the two. So, it should be between the two different readings.

Did you get a genuine Hayward T-15 or a generic cell?
generic cell. I had another mother board. I put it in just now. After changing to t15, its says salt level is 4.. just 4, and instant salinity is -4.2....its on US measurements, as the temp says 76. the rest of t he numbers seem spot on.
 
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JamesW

TFP Expert
Mar 2, 2011
14,560
The cell is working. The inconsistency is odd, but there's not much you can do about it other than a warranty replacement.

The other board reading 4 for salinity is also odd. Is the board a Hayward or generic?
 

Pool_Medic

In The Industry
Apr 1, 2018
768
Bangor Maine
There are published articles citing phosphates and salt cells. Supposedly the phosphates can coat the blades and limit chlorine production. I’m not sure if it’s true or more pool industry nonsense?