Technical Support - MDM
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599 77 39-16 Rev. 00
Once you have removed the outside of the IDB.
Attached to the welded tub, the diaphragm assembly with the floating
valve remains.
Remove the diaphragm assembly.
IDB complete with diaphragm assembly.
Diaphragm assembly seen from the welded tub part.
The side window - referred to as the “vent” (shown by the arrow) allows you
to keep the drain circuit balanced to achieve good performance.
Diaphragm assembly seen from the IDB side.