Yes, the SEP4 is steel inside, however it's still a good choice for your system. With the oxygen in your system there will be corrosion, no getting around that. You may want to add one of the popular water treatment chemicals that scavenge the oxygen, to keep corrosion to a minimum.
Kevin
Yes, the SEP4 is steel inside, however it's still a good choice for your system. With the oxygen in your system there will be corrosion, no getting around that. You may want to add one of the popular water treatment chemicals that scavenge the oxygen, to keep corrosion to a minimum.
Kevin