I replaced the red flapper with a high quality one. It took a bit of force to get the plastic cap to seat. I thought for sure this would solve the leak pictured below:


But it is still leaking all the way down the block and onto my driveway - about 4-5 drops a night.

Any recommendations? Try another one? Replace the valve cover?

I'm frustrated now every time I see more dark spots on the driveway. Help is appreciated.

 

I've got a small leak myself coming from where the red flapper is. I'm gonna have to inspect. ore on mine to see if just replacing the red piece fixes it.

 

Yep - I replaced the red flapper but the leak persists. Wondering if it is a defective part or something else is going on.

 

It sounds like you may need to replace the entire valve cover with a brand new one and not buy a used one. Seeing as you have already replaced the red flapper, the cover may have been distorted due to excessive heat and cooling therefore a complete seal is not possible. It's not something you did wrong. Plastics will always be plastics when it comes withstanding excessive heat.