JOBO ATL-3

Michael,

There could be several problems, but it is mainly air leaking.
In the upper motor house there is a rotation device for distribution of the pressured air, there can be air leaking.
See part Nine of: http://www.jobo.com/jobo_service_analog/us_analog/bulletins/b014.htm
The switch between the air of the front and back bottles, located on the left at the back row of bottles, that can be air leaking.
The simplest to check is the switch of air between front and back bottles.
See part Seven of: http://www.jobo.com/jobo_service_analog/us_analog/bulletins/b014.htm
Take it apart and put a little bit of grease on the rubber O rings.
Or if you do not use the back bottles, connect the incoming air hoses directly to the air hoses that connect to the front bottles. (but let the switch there, otherwise an error will occur because of an electrical switch in the air switch)
Fix the air leaks and you will have full quantity of chemicals.

Mike

When I was messing with the drain, I actually had to remove the lift head from the base. When I did that I dissasembled that bottle selection switch. I knew there was potential for a problem there, and so I tried to reassemble it properly. Clearly if that is something you are thinking of without even knowing what I have done points me to that switch. I can use some silicone and fix the fitting at the air bottle. I will find some grease and lubricate those O-rings upon dissassembly.

I'll consult those .html files you linked to and see if they have any other suggestions.

Thanks again Mike!

EDIT: Interestingly enough, I had enough smarts (knock on wood!) to figure out running a wet test program on my own. It makes me happy to know I figured out a factory test procedure accidentally on my own! :^)

Michael,

Silicon is all you need to fix air and fluid leaks in the ATL, and for sealing the lower motorhead.
Look also for missing O-rings, and if you do not use the back bottles just connect the incoming air hoses to the front bottle air hoses.
A simple and accurate solution.
A lot of info can be found at: http://www.jobo.com/jobo_service_analog/

Mike.

I plan on using the rear bottles for E-6, so I want that switch to work. I have been learning a lot from that old JOBO site. Too bad it's not easier to find.