In the middle of summer it’s nice to know that you don’t need to think about heating, right?
Well, you shouldn’t forget it altogether. If you leave your wet central heating system standing idle all the way through the summer, the lubricant around the pump’s bearings will settle, leaving surfaces unlubricated. And if that happens, you’re increasing the chance that the pump will seize when you place it under a heavy load again in the autumn.
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