I help run a public darkroom and we have a FujiMoto CP31 and we're having some technical issues:

the developer is leaking from its tank into the fix tank at a rate of about 50 mL every couple of minutes. It's only happening when the processor is on, and it's not 'flooding' over, which is to say the developer isn't flowing over the top of the tank and into the fix tank.

Has anyone ever had heard of this, or know what it the problem could be? I am so stumped on this one!

Any advice or information is very very much appreciated!
Thanks!