Purchase a machine and buy your chemicals at Costco or Cash&Carry, if you're looking to eliminate the salesmen.
The salesmen come into play when your machine breaks during the middle of service on a Friday.
Even if you own the machine, if you are using their chemicals, they should come in and fix your machine on call.
If you don't have that service, then buy your chemicals at cash&carry or a big-box.
If you're handy with simple motors and simple plumbing, then do it yourself.
If your detergent supplier is treating you like dirt, then switch. Don't let them hold you in a contract.
Leave. Are they going to take you to court? Nope.
Unless you're behind in bills...
Oh, also, never sign a contract. Flat out refuse. They'll work with you.
Never sign a contract (that doesn't allow yourself an out).
So many post count:1 in this thread.
P.S. I've had good customer relations with both EL and A-Clor. It kinda depends on your region and their region mngr.
I think it's sad that they send ppl here to defend them with walls of text that no one reads. If you're going to do that, you should be clever about it.
You're not clever, guys. No one gets that defensive in retrospect. I've worked with former soap chemical salesmen. You're ridiculous.