v/v seat removal when square hole eroded to round?

[hj]

Well stocked companies which sell seat often have the "reseating tools" which have the taps with them.

[AcidWater]

Eljer was taken over by American Standard and they are not supporting it.

27 is a really odd thread pitch; I have not seen any other company using it.

[hj]

http://www.tapsndies.com/catalog/ite...55/6857196.htm