I purchased a new/used home in october and I am just now trying to bring my Jandy 1400 SWG online. I have kept the pool up all winter with liquid chlorine, muriatic acid, kept it clean, chemical fairly balanced, etc. The Jandy SWG was set to 0.0% as per the manual to keep the chlorine generator off.
So I just cleaned the unit in muriatic acid and cleaned the flow/temp/Salinity sensor as per the manual. I started the filter and everything powered up and looks Ok.
After I let everything run for 15 minutes or so, the service light is on with code 144 low salt. It reads about 1.1 g/L on the LCD. About a month ago I went to the Pool store for a test and they recommended I add about 100 lbs of salt, which I did.
Testing the water with the inexpensive salt strips, I get 2.4 g/L (2400 ppm). My Jandy LCD is reading 1.1 g/L (1100 ppm). Jandy instruction manual recommends maintaining 3.0 g/L salt levels.
So here is my dilemma. Do I go by the cheap salt test strips or the Jandy LCD? I assume the pool store (I cannot remember) was calculating the salt required to get to 2.5 g/L, which is where the Salt test strips say I am at.
Depending on which reading I use, 1.1 or 2.4 g/L, there is a huge difference on how much salt to add to my 20,000 gallon pool.
How often to the Flow/Temp/Salinity sensors go bad? (my pool is approx 8 years old)
How accurate are the Pools Store Salt tests?
I figure I am just going to add somewhere about half of what is recommended on the salt chart for a 1.1 g/L reading and see what the Jandy LCD reads.
Any advice would be much appreciated.