[I need to adjust my overflow teeth a tad higher to raise the water level in my display less than a 1/4". The water level is running just below the top trim.My overflows are the fixed variety.Does anyone know if any local LFS sell them? I know I can mod a piece of acrylic to do it and put a vinyl bolt and nut through it.I prefer it to be professional lloking though 
Thanks!
Andy]
Thanks!
Andy]