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When I either add or remove water to my Burnham boiler, the glass water level gauge is very slow to show the actual change in the water level of the boiler. I have to come back a half hour later to see what the results are. I assume that the connection from the gauge to the boiler tank is clogged. If this is the case, are there any thoughts on how to unclog it or should I call in the experts to have a look.

Thanks for your help…