Well, I just got done draining the resin tank using one of the above prescribed methods. I have an old (30+ years) Shop Vac with the capability of moving the hose to the outlet side. Try to find one on the market today that has that....not sure why they did away with that feature. But, I digress! I used this vacuum to apply pressure to the inlet on the softener head and used another vacuum to suck the water from the outlet. Worked like a charm. Thanks!
Batman71