Do you have a question about the Fluidmaster PerforMAX K-400H-040 and is the answer not in the manual?
Identifies components of the PerforMAX Fill Valve and 3" Flapper.
Lists necessary tools for installation.
Directs users to an online video for visual guidance.
Instructions on how to shut off the water supply to the toilet.
Guide on flushing the toilet to remove most of the tank water.
Method for removing residual water from the toilet tank.
Instructions for disconnecting the water supply from the old fill valve.
Steps to unscrew and remove the locknut securing the old fill valve.
How to detach the old fill valve, refill tube, clip, and washer.
Disconnecting the flapper chain from the tank lever.
How to detach the old flapper from the flush valve.
Placing the new flapper onto the flush valve seat.
Connecting the new flapper chain to the tank lever with proper slack.
Adjusting the fill valve height relative to the overflow pipe.
Attaching the refill tube to the fill valve's refill port.
Securing the refill tube clip to the overflow pipe.
Positioning the fill valve into the tank, ensuring no interference.
Connecting the refill tube to the overflow pipe for proper water delivery.
Securing the fill valve with the locknut.
Connecting the water supply line to the new fill valve.
Instructions for restoring water supply and checking for leaks.
Verifying the correct water level in the tank after filling.
How to check the tank water level after flushing.
Adjusting the tank water level using the adjustment screw.
Performing a test flush to evaluate performance.
Adjusting the flapper dial for optimal flushing.
Finalizing the flapper dial setting for the best flush.
Adding water to the bowl to establish a baseline level.
Marking the desired water level on the bowl interior.
Checking the bowl water level against the marked line after flushing.
Adjusting the bowl water level using the fill valve dial.
Re-checking the bowl water level after adjustments.
Final flush to confirm successful installation and operation.
Addresses common fill valve operational issues.
Steps to remove the fill valve cap and clear any obstructions.
Instructions for replacing the fill valve seal.
Diagnosing and fixing low water level in the toilet bowl.
Diagnosing and fixing low water level in the toilet tank.
Adjusting flapper chain slack to prevent premature closing.
Checking if the fill valve dial requires adjustment.
Identifies components of the PerforMAX Fill Valve and 3" Flapper.
Lists necessary tools for installation.
Directs users to an online video for visual guidance.
Instructions on how to shut off the water supply to the toilet.
Guide on flushing the toilet to remove most of the tank water.
Method for removing residual water from the toilet tank.
Instructions for disconnecting the water supply from the old fill valve.
Steps to unscrew and remove the locknut securing the old fill valve.
How to detach the old fill valve, refill tube, clip, and washer.
Disconnecting the flapper chain from the tank lever.
How to detach the old flapper from the flush valve.
Placing the new flapper onto the flush valve seat.
Connecting the new flapper chain to the tank lever with proper slack.
Adjusting the fill valve height relative to the overflow pipe.
Attaching the refill tube to the fill valve's refill port.
Securing the refill tube clip to the overflow pipe.
Positioning the fill valve into the tank, ensuring no interference.
Connecting the refill tube to the overflow pipe for proper water delivery.
Securing the fill valve with the locknut.
Connecting the water supply line to the new fill valve.
Instructions for restoring water supply and checking for leaks.
Verifying the correct water level in the tank after filling.
How to check the tank water level after flushing.
Adjusting the tank water level using the adjustment screw.
Performing a test flush to evaluate performance.
Adjusting the flapper dial for optimal flushing.
Finalizing the flapper dial setting for the best flush.
Adding water to the bowl to establish a baseline level.
Marking the desired water level on the bowl interior.
Checking the bowl water level against the marked line after flushing.
Adjusting the bowl water level using the fill valve dial.
Re-checking the bowl water level after adjustments.
Final flush to confirm successful installation and operation.
Addresses common fill valve operational issues.
Steps to remove the fill valve cap and clear any obstructions.
Instructions for replacing the fill valve seal.
Diagnosing and fixing low water level in the toilet bowl.
Diagnosing and fixing low water level in the toilet tank.
Adjusting flapper chain slack to prevent premature closing.
Checking if the fill valve dial requires adjustment.
| Product Type | Toilet Fill Valve |
|---|---|
| Model Number | K-400H-040 |
| Material | Plastic |
| Warranty | 5 years |
| Adjustable Height | Yes |
| Universal Fit | Yes |
| Color | White |
| Compatibility | Fits most standard toilets |











