Plug (pasak) then Patch (tapal) on tire?

[glenn_duke]

I mean originally, only a nail is in the tire. Then they used screwdriver to make the hole bigger so the rubber plug could fit (as many who users who saw the procedure reported).

If the new shop will put patches inside. He still has to remove the rubber plug? I thought it would remain. What happens if it would not be removed? Without any thing to block the rubber outside, won't air/water from outside like flood, can slowly seep into the belt/ply system over the years?

When you insert the plug, there will be an extension of the plug protruding inside the tire. Since its soft rubber, grinding it will be difficult, thats why the crew will remove it using a long nose plier. In most instances all the plug will come out, some will be left behind.

I prefer to leave some part of the plug behind to cover whatever the patch plus tire pressure could not cover.

A puncture is a puncture, its a hole, removing the nail that caused the puncture will not heal the tire, there will still be a hole in there. Patches and plug do their job to keep the air inside your tire. Unless your tire is made of biodegradable rubber, you should not worry about air and water creeping in a tiny hole.