Hayward T cell 940 aqua rite 900 not reading correctly

[JenniferMarie90]

Hey friends. One day my pool will truly be troublefree but for now (and the past 3 years) it has not been lol I say that because I already drained the pool last year and hoping not to do it again. Not even sure if I can do a partial drain with how hot it is here in Vegas now.

My current issue is I don’t think my SWG is reading the salt correctly. I know my salt is a little on the high side due to my husband adding too much last summer. I took some manual tests. Do we think the SWG is reading right based on the pics of my tests? I used two different tests.

Also see diagnostic and system info below
Salt 5600
Temp 84
Cell voltage 24.6
Cell current 6.92
Desired output 52%
Instant read -5400
AL-0
R 1.59
T-9

T cell 940 aquarite 900 Hayward about 3 years old

 

[ajw22]

Trash those test strips and get the Taylor K-1766 Salt Test Kit for accurate testing - Salt

The Hayward 940 cell is a T-15 cell for a 40K pool. You have cell type T-9 set which throws off the Aquarite salt calculation.

You should have salt levels in the mid 3000s and not exceed 4000.

Get a good salt test kit to determine what your salt level really is. Then get your salt level around 3200 ppm and change the cell type to T-15.

Post a pic of your cell.

What are the first seven characters of the cell and box serial numbers?

Hayward Aquarite SWG - Further Reading

www.troublefreepool.com

 

[JamesW]

Change the cell type to T-15 and the salinity will read correctly.

The actual salinity is probably about 3,500 ppm.

 

[JamesW]

If the amps go above 7.0, you should dilute the salinity down enough to keep the amps below 7.0.

The amps can go up to 8.0, but I would keep the current below 7.0 if possible.

 

[JenniferMarie90]

Change the cell type to T-15 and the salinity will read correctly.

The actual salinity is probably about 3,500 ppm.

Really?! I think it was on T-15 when they installed it but the PB selected the 940. I'll do that and see what happens. I think my salt MIGHT be on the higher side but I didn't really believe the 5,500.

whats the reasoning for changing it to t a T-15? for my own knowledge

Updated. changed it to t-15 and the salt is around 3800-3900.

 

[JamesW]

The 940 is the same as a T-15.

 

[JamesW]

If the amps go above 7.0, you should dilute the salinity down enough to keep the amps below 7.0.

The amps can go up to 8.0, but I would keep the current below 7.0 if possible.