I have searched on this forum and googled a bunch and have yet to find a solution. I know RO
systems are rated at 77 degrees and my cold supply line is well below that in winter and it effects my water production a lot. The only idea I came up with is to put about 20 ft of water line out of cold water supply before it gets to my RO
system. But with moving water not sure how much that would even heat water. Any ideas? I have had the system for almost 2 years and it is essential to my reef. I am just now being bothered by how much water I'm wasting and will come up with some way to use waste water in my washing machine.