The glass plate level gauge is dirty
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The glass level gauge in the container on site is very dirty and unreadable; how can it be cleaned? It hasn’t been cleaned yet. Please, experts, give some advice. Thank you; points will be given
There should be thread plugs at both the top and bottom of the level gauge; it can be cleaned with a brush, and in severe cases it can be disassembled for cleaning. Be careful not to misalign it when reinstalling, as this could crush the glass or cause leaks