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Re: Replacement for Warrick Probes

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Posted by George on October 12, 2011 at 23:45:37:

In Reply to: Replacement for Warrick Probes posted by Damon on June 29, 2011 at 15:26:45:

: Does anyone know of a replacement for our Warrick probes on our CB boilers. Being in the Veterans Affairs we are regulated to have a float and a probe level indicators. We run our Primary low water on a float and our low alarm and auxiliary low water on warrick probes. They work great but not with our R.O. system. I talked with Warrick and they don't want their probes used with R.O. and with the low tds we get false alarms on the probes. Does anyone know of a probe that can be used on a low tds, high pressure boiler. We are running 80 psi. Any help would be great! Thanks!

In the past, I have had to have customers add caustic soda to the boiler feedwater tank (or deaerator) to increase conductivity into the range of sensitivity of the probe controller. Low conductivity models are available, but are no substitute for higher TDS boiler water. Alternatively, it may be possible, depending upon your circumstances, to decrease the boiler blowdown rate, thereby increasing boiler TDS and increase cycles of concentration, saving money on chemicals, fuel, etc.

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