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Thread: Low salt readings

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    Newpool2011's Avatar
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    Low salt readings

    I was hoping someone could try and help me with my salt readings. When I opened the pool three weeks ago the salt reading on my Intellichlor was around 2800ppm. I added salt and brought it up to 3500ppm. About a week ago I started getting a red light, “very low” salt reading. I called the PB they said to add more salt and run the pump for 48 hours straight. I did this Friday afternoon (7 bags) and I’m still getting 2700 ppm reading. I bought test strips and they read 3200 ppm on Saturday. Any suggestions would be very helpful. The pool is less than a year old. Thanks
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    18x43x28, 32K gal, True L Vinyl IG
    DE Filter, 1.5 HP Pump, Heat Pump, IC40 SWG, Pentair Easytouch, Dolphin Supreme M4

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    JasonLion's Avatar
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    Re: Low salt readings

    How old is your InteliChlor cell? Do you have an autofill system?

    Remember that it takes 24 hours with the pump running before the unit will fully register any change in the salt level.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Newpool2011's Avatar
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    Re: Low salt readings

    The cell was installed last June and used until September, we do not have an autofill. I ran the pump from 4pm Friday until 5pm Saturday. Then again Sunday from 6:00am until 5pm.
    18x43x28, 32K gal, True L Vinyl IG
    DE Filter, 1.5 HP Pump, Heat Pump, IC40 SWG, Pentair Easytouch, Dolphin Supreme M4

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    JasonLion's Avatar
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    Re: Low salt readings

    The only other thing I can think of would be if the water is cold. Very cold water can make the salt level read lower than actual.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Newpool2011's Avatar
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    Re: Low salt readings

    It's been around the mid 60's. The temps are suppose to warm up this week.
    Do you think the cell could be bad?
    18x43x28, 32K gal, True L Vinyl IG
    DE Filter, 1.5 HP Pump, Heat Pump, IC40 SWG, Pentair Easytouch, Dolphin Supreme M4

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    XsAllOverIt's Avatar
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    Re: Low salt readings

    You can certainly raise the salt level to 3400 ppm. If you're generating the right amount of chlorine and your tests are correct, I wouldn't worry too much over it. As Jason said, they do read low when the temperature is low. Also, if it's an older unit, there is a calibration method that I had to use on my older unit. It always read differently than the actual readings, so I calibrated and all the lights were green from there on. You can check that out by finding the threads - go to google search below and search on Intellichlor calibration.
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    Mod Squad Bama Rambler's Avatar
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    Re: Low salt readings

    Was that 60º air or water temp?

    If it's air temp your water could be colder and that's the problem.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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    Newpool2011's Avatar
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    Re: Low salt readings

    The water temp has been around 65-69. The forecast for this week shows it warming up. I will probably give a few more days and see if the ppm reading moves up.
    18x43x28, 32K gal, True L Vinyl IG
    DE Filter, 1.5 HP Pump, Heat Pump, IC40 SWG, Pentair Easytouch, Dolphin Supreme M4

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    Mod Squad Bama Rambler's Avatar
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    Re: Low salt readings

    If it's getting close to the year mark, I'd go ahead and call Pentair and start a ticket. If it turns out to be nothing they'll just close it. Unless you go the 3 year warranty.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
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    Newpool2011's Avatar
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    Re: Low salt readings

    I do have the 3 year warranty. I called the PB and he was going to call his Pentair rep. and see what they had to say.
    18x43x28, 32K gal, True L Vinyl IG
    DE Filter, 1.5 HP Pump, Heat Pump, IC40 SWG, Pentair Easytouch, Dolphin Supreme M4

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    Mod Squad Bama Rambler's Avatar
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    Re: Low salt readings

    Just didn't want you running out of warranty if it was getting close.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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