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If you are experiencing large pressure changes as the temperature rises and falls, then the culprit could be the expansion vessel. This is designed to expand like a balloon, when the temperature of the system increases and thus reduces the increase in pressure that would otherwise result.


Hinge at bottom to adjust angle ,8-12 inch thin plate mounted on top 50/50 when hail is expected raise the panels to 90deg 4-6 inch overhang will protect front and back. ______ || ======| || ||

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