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Weil Mclain Boiler - Dissappearing Water
I have a Williamson boiler (rebadged Weil Mclain) one pipe parallel flow system.
I have a dissappearing water issue.
The boiler is using both risers into a dropped header(boiler picture was taken before drop header installed). The boiler does not cutout on pressure only turns off when thermostat is satisfied.
When the boiler is off - water is at normal level - approximately at the half mark on the glass gauge
When the boiler is starting to make steam - water dissappears and is not visible in the
glass gauge, but I dont beleive is low enough to trigger LWCO.
When thermostat is satisfied, water slowly comes back to the gauge to normal level.
I have about 2 feet of horizontal return piping below the water level behind the boiler.
Please let me know if this low water issue can damage the boiler, and ways I can try to resolve it. Thank you in advance.