We have a simple procedure. The gum comes in 20 litre cans. When the can is 50% empty, we dissconect it, fill an empty 20 litre can, with luke-warm water in it's place. Drain the filter (every 3rd time wash the filter also the pipes for distributing the gum are cleaned those times). Clean all the rollers (with water), including using a tooth brush on the cogs that are unpractical to remove. With a damp/wet cloth remove any build up. Let the cleaner run the water through for 20-30 minutes, then it is drained from water. The now coloured water is now poured over to the half empty canister, of old gum making a full canister to send to the firm responsible for destruction of chemical waste (environmental requirement where we are). My "washing" canister is now empty – and i replace it with a fresh batch of gum.
Those instances where it has been unpractical to clean when cleaning was due, I have just topped up with a litre tap water to put it off a couple days.
There is no chemical process like a developer, meaning the system is not sensitive to small variation. The process is in the CTP. If need be you can actually just hose down the plates and put in press, but the gum makes them easier to handle.