salt reading water testing

SWGs, salt water chlorine generators, chlorinators,
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rob52
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My Pool: inground 18000 gallon, vinyl liner, 48 DE filter with heat pump, salt water generator

salt reading water testing

Postby rob52 » Sun 27 May, 2018 08:47

My swg is reading 2700ppm salt yet the pool water test at store reads 4300ppm. free chlorine reading is 8ppm. Brand new cell so dont think it is that. pool opened 2 weeks ago. also the phosphate reading is 4300ppb.
any suggestions appreciated


Denniswiseman
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My Pool: 10k inground fibreglass, Telescopic Cover, Hayward Powerline pump, Quality filter with glass media, 27kw output heat pump, K-2006C test kit
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Re: salt reading water testing

Postby Denniswiseman » Mon 28 May, 2018 02:23

Is that 4300ppb parts per billion if so it's not very high
Get your own salt test kit to check the SWCG isnot alwaysthat accurate
Denniswiseman
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Posts: 913
Joined: Tue 06 Sep, 2011 05:48
My Pool: 10k inground fibreglass, Telescopic Cover, Hayward Powerline pump, Quality filter with glass media, 27kw output heat pump, K-2006C test kit
Location: United Kingdom

Re: salt reading water testing

Postby Denniswiseman » Mon 28 May, 2018 03:16

Denniswiseman wrote:Is that 4300ppb parts per billion if so it's not very high
Get your own salt test kit to check the SWCG is not alwaysthat accurate

Phosphates aren't a problem providing you keep your chlorine as indicated in your Chlorine / CYA Chart and your recommended Pool Levels
rob52
Pool Newbie
Pool Newbie
Posts: 4
Joined: Sun 27 May, 2018 08:28
My Pool: inground 18000 gallon, vinyl liner, 48 DE filter with heat pump, salt water generator

Re: salt reading water testing

Postby rob52 » Mon 28 May, 2018 07:36

what worries me is that my aqua plus has a check system low salt indicator on and that the cell will be ruined or shut down thinking there is low salt.
hoping i can recalibrate it. any knowledge?
rob52
Pool Newbie
Pool Newbie
Posts: 4
Joined: Sun 27 May, 2018 08:28
My Pool: inground 18000 gallon, vinyl liner, 48 DE filter with heat pump, salt water generator

Re: salt reading water testing

Postby rob52 » Mon 28 May, 2018 08:01

can the phosphorous level cause a salt misreading? i believe they use a tds test method
Teapot
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Re: salt reading water testing

Postby Teapot » Mon 28 May, 2018 14:55

rob52 wrote:what worries me is that my aqua plus has a check system low salt indicator on and that the cell will be ruined or shut down thinking there is low salt.
hoping i can recalibrate it. any knowledge?

Not familiar with that unit, have you tried the manufacturer?
Some units measure the electrical conductivity of the water and calculate the salt level from that. Of course that may not be a true reading of the salt as other minerals (magnesium, copper,iron etc ) can interfere with that reading. The power supplies are what suffers when out of range if they are not man enough for low or high conductivity.

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