Some advise needed. Back flow into regulator

[Dcpcooks]

So my neighbor gave up brewing a 15 years ago. He was always frustrated with warm kegged beer(small plate chiller) and when he had a back flow into his regulator it was the last straw. He sold everything except for a few old cornet kegs.

He gave me the kegs a week ago. I cleaned them and replaced the gaskets. Filled them with beer and started force carb on five batches yesterday. Well I found out why he was having back flow issues. He had swapped the beer out and gas in fittings on one keg.

I was rushing around trying to keg a bunch of beer and didn't notice it. I was checking a keg this am and saw beer in a line. I had reduced the pressure and got a back flow into at least one secondary regulator. It's my bad, I totally missed it.

Has anyone had success cleaning out a regulator? I'm not looking forward to pulling this all apart for cleaning but I don't think I have any other options...

 

[jekeane]

Most regulators are nothing more than some filter discs, washers, a spring and a diaphragm. Getting it apart is the hard part some times. Invest in check valves and you won't have this issue again.