We converted from Baquacil to a SWG system in May of 2011 and are very pleased with the results. I have been watching for any corrosion issues and until recently there were none. One of our pumps includes a loop system to the solar domestic hot water system in the garage so we can extract excess heat from that system. It has what is called a Stainless Steel, Copper Brazed Plate Heat Exchanger that the pool water passes through for heat extraction. Unfortunately it has corroded from the salty pool water which surprised me. I thought 316 stainless and copper would not corrode. I now have to replace it with a titanium heat exchanger.
This brings me to my question: is the pool water corroding the inside of my copper pipe leading to and from that heat exchanger? I am also concerned about corrosion inside the cast iron heat exchanger inside my gas pool heater as well. I have not installed a sacrificial anode to the system because I do not have any aluminum touching the pool water.
I will be able to see the inside of the copper pipe when I re-plumb the new exchanger. I can also disconnect the pvc pipe from the heater input and look inside the boiler if necessary.
Any opinions on this issue?
Thanks,
David Ableidinger
This brings me to my question: is the pool water corroding the inside of my copper pipe leading to and from that heat exchanger? I am also concerned about corrosion inside the cast iron heat exchanger inside my gas pool heater as well. I have not installed a sacrificial anode to the system because I do not have any aluminum touching the pool water.
I will be able to see the inside of the copper pipe when I re-plumb the new exchanger. I can also disconnect the pvc pipe from the heater input and look inside the boiler if necessary.
Any opinions on this issue?
Thanks,
David Ableidinger