The water level in the bowl is determined by the design of the toilet
and its enclosed drain trap. When you flush, the water level rises until
the water reaches the output side of the trap and then any excess water
Take off the tank top and flush the toilet. Is the water flowing from
the refill tube running from the intake valve into the overflow pipe?
The tube is what fills the bowl after a flush. It should be fast flowing
into the overflow pipe when the tank is filling. If the tube is outside
the overflow pipe, then that is the problem. Put the tube back in the
overflow pipe. If the tube is inside the overflow pipe, but the water is
slow flowing or not at all, or it shuts off prematurely (before the tank
is filled and the float shuts off the flow), then replace the valve
<< I uderstand, however the level used to be about 1 to 2 inches higher in the
This conditon may be indicative of a restricted venting system. Toilet
discharges have to be balanced with with proper vent air flow and bowl fill to
maintain the proper water level in the trap. Easy to check and correct. HTH
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