We have an Intellichem that is hooked up to an IC 40 SWCG, and a Muriatic Acid tank. We also have a DelOzone and Parmount UV2 sterilizer in-line so we can keep the Chlorine levels lower than the standard 3.0+. We test with a Taylor K2006C with salt testing.
Taylor test real measurements:
FC=1.0, CC=0, pH=7.6, TA=89, CH=260, CYA=30, Salt=3400, temp=76
Intellichem inaccurate measurements:
pH=4.04, ORP= -12, SALT=3450
Our Intellichem now gives really bad readings. It used to read normally, until our Pool Builder replaced the pH sensor when the acid tank kept adding acid even when the pool was off. (Turns out that the flow/float switch for some reason keeps sticking). After he replaced the pH sensor about a month ago, the ORP sensor started reading lower and lower ORP numbers, until it got to NEGATIVE 12!!! Yes!! You read that right--a NEGATIVE ORP. We called them back, they said let's disconnect the SWCG from the system till we get a new ORP sensor and put it in. So, now a month later, they come and replace both the ORP and the pH sensors with new ones. They ran the 'test' cycle on them, and said all is good and left. Looking at the readings 30 minutes after they left, the pH was reading 4.04, and the ORP was negative 1. I was going to clean the filters (cartridge) anyway, so I shut off the system, cleaned the filters and started it all up again thinking that a hard restart might bump it into acting properly. Not so lucky. The pH is continuously reading 4.04 (setpoint is at 7.3), and the ORP was NEGATIVE 9 (setpoint is at 660). Now, about 5 hours later, the ORP is NEGATIVE 12 again. Deja vu all over, but now with the added "feature" of an extremely wrong 4.04 pH when it's actually 7.6. These were brand new sensors--I saw him unpack them from the box, and they even still had the liquid with the little yellow sponge in the screw on probe cover to ensure they stayed wet during shipping. This doesn't make sense. Does anyone have any idea as to why I would be getting a NEGATIVE ORP reading (especially when we have 1.0 chlorine and also have the ozone and UV running as normal which should also raise the ORP, and why the pH reading is now also way off. We are totally perplexed!!! Thanks, Carolyn.
Taylor test real measurements:
FC=1.0, CC=0, pH=7.6, TA=89, CH=260, CYA=30, Salt=3400, temp=76
Intellichem inaccurate measurements:
pH=4.04, ORP= -12, SALT=3450
Our Intellichem now gives really bad readings. It used to read normally, until our Pool Builder replaced the pH sensor when the acid tank kept adding acid even when the pool was off. (Turns out that the flow/float switch for some reason keeps sticking). After he replaced the pH sensor about a month ago, the ORP sensor started reading lower and lower ORP numbers, until it got to NEGATIVE 12!!! Yes!! You read that right--a NEGATIVE ORP. We called them back, they said let's disconnect the SWCG from the system till we get a new ORP sensor and put it in. So, now a month later, they come and replace both the ORP and the pH sensors with new ones. They ran the 'test' cycle on them, and said all is good and left. Looking at the readings 30 minutes after they left, the pH was reading 4.04, and the ORP was negative 1. I was going to clean the filters (cartridge) anyway, so I shut off the system, cleaned the filters and started it all up again thinking that a hard restart might bump it into acting properly. Not so lucky. The pH is continuously reading 4.04 (setpoint is at 7.3), and the ORP was NEGATIVE 9 (setpoint is at 660). Now, about 5 hours later, the ORP is NEGATIVE 12 again. Deja vu all over, but now with the added "feature" of an extremely wrong 4.04 pH when it's actually 7.6. These were brand new sensors--I saw him unpack them from the box, and they even still had the liquid with the little yellow sponge in the screw on probe cover to ensure they stayed wet during shipping. This doesn't make sense. Does anyone have any idea as to why I would be getting a NEGATIVE ORP reading (especially when we have 1.0 chlorine and also have the ozone and UV running as normal which should also raise the ORP, and why the pH reading is now also way off. We are totally perplexed!!! Thanks, Carolyn.
