How do I prevent an Ice from freezing in faction base walls? [duplicate]

I made a huge base from bottom to the top I also made walls it almost finished I need water to protect it from TNT but how do I stop it from freezing the water?

Someone did there's duplicate of this question IT'S NOT there's nothing about on faction bases like on walls
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Have you tried putting a lily pad on top of the water? It makes it frostwalker-proof. I am sure it won't freeze the water in cold biomes...


Try putting a torch next to it. If that doesn't help, use lava near it!