Laswim EC Series Salt Chlorinator Showing E5: How Much Salt Should You Add?
Laswim EC Series Salt Chlorinator Showing E5: How Much Salt Should You Add?
The E5 code indicates salt concentration is too low. Before adding salt, test the actual level and calculate how much you need, so you dont overdose.
Salt Concentration Too Low
E5 is a warning code, not a salt reading. Test the actual level before adding salt.
3 Steps to Add Salt Correctly
How to Calculate the Amount of Salt
1 ppm of salt in 1 m³ of water is about 1 gram, so the calculation is:
A 50 m³ pool measures 2,500 ppm and needs to reach 3,500 ppm
50 × (3,500 2,500) ÷ 1,000 = 50 kg
Approximate Salt Quantity Table
Target 3,500 ppm, calculated with the formula above (unit: kg)
Figures are theoretical estimates. Add salt in portions and retest after it has dissolved and circulated.
Have a technician check the unit before adding more, to avoid pushing the salt level too high.
E5 is a warning code, not a salt reading, and it doesnt mean the cell has failed. Test the actual level before deciding on a fix.
Disconnect power before removing equipment or doing maintenance. Internal inspection should be done by a technician.
Frequently Asked Questions
What does the E5 code mean on a Laswim salt chlorinator?
E5 means salt concentration is too low. Test the actual level and calculate the amount needed before adding salt.
What salt level should a Laswim EC Series run at?
The Laswim EC Series manual specifies a normal salt level of 3,500 ppm.
How much salt for a 50 m³ pool at 2,500 ppm?
You need another 1,000 ppm to reach 3,500 ppm, which is about 50 kg of salt.
Should the chlorinator be off while adding salt?
Yes. Turn the chlorinator off but keep the pump running. Per the manual, run the pump for 24 hours so the salt dissolves and circulates, then retest before switching the chlorinator on.
Salt is normal now but E5 still shows. What should I do?
Dont add more salt. Have a technician check the unit to avoid pushing the salt level too high.
Need Help Calculating Salt?
Send us your measured salt level and your pool size or volume.
