Ok I have been searching for weeks. Stopped off at a few local welding places but I keep getting blown off.

I am looking to weld thin aluminum no more that 1/8".

I cant get the aluminum wire to go though my wire feed welder.

I have an L-tech 225. I would like to get a spool gun for it but I cannot seem to find one.
Does anyone know were a person can get a spool gun for this welder. The welder says its an ST-23 spool gun option.