SylvanLMP
Yes, Kirk there is a “special tool” it is called a 6 way wrench made by Sexauer/Creed and 4 dozen other companies.
Normally to free an old basket type strainer I have found a hammer and chisel works wonders.
All you do is take an 8 oz ball peen
hammer and hold the chisel on one of the edges of the strain retaining ring (NUT) and give it one or two whacks THEN you can use a 10″ or 12″ or 14″ pipe wrench to loosen it the rest of the way.
A lot of the newer nuts are garbage white metal and if your lucky the 2 hits with the hammer and chisel will often crack this nut in half END OF PROBLEM.
