Remove the drain by turning the flange counter clockwise.
Fix bathtub drain stopper spring.
Many hardware and plumbing stores will rent a device called a drain removal tool.
If the water drains out repeat the process above and lower the plunger a little bit more until you get the bathwater to stay in.
Feed the linkage back into the overflow hole and let the weight fall freely.
Pull the plate and lever away from the overflow hole partially pulling out the mechanism.
These can be hard to remove.
Place the plunger threaded rod and trip lever back into the hole in the tub and screw the plate back into place.
Close the stopper run some water into the tub and see if it stays.
How to fix a bathtub pop up drain stopper.
Pull the lever out then lift it straight upward to remove the linage from behind the tub.
Turn this nut clockwise through three or four rotations with a pair of adjustable pliers to shorten the linkage.
Replace the flange assembly.
Push the assembly back in and replace the cover plate.
Some drains have stoppers that are spring loaded operated by a push of the toe or by hand while others use a trip lever mounted on the bathtub s overflow plate.
Repair a pop up tub drain stopper with help from a.
Adjust the nut on the linkage lengthen it to raise the stopper or shorten it to let it drop lower.
On the end will be a weighted plug or a spring depending on the kind of stopper mechanism you have.
This is necessary if the rod mechanism no longer functions.