For the spray bottle kleen solution, I would at least add the full strength 10ml, if not more (seems you shouldn't be spraying very much, maybe go 15?), and only really use it like that to blast the drip rings, water diffusers, and other areas right above the pots. Only the places that the solution would end up running down into the medium during grows.
Spray/wipe everything outside that zone (trays,tubes,etc) with a some bleach water, seems you already have it added to the res at all times right?. I prefer vinegar (ACV) for general grow room/hydro sytem cleaning (especially around aquariums\fish, being non toxic), but can't recommend that because you shouldn't go mixing it with or around bleach\calhypo..
Hooking up quick disconnects with valves to all your plumbing lines can help make cleanings a snap, even during a grow cycle. Being able to break down any part of the system in no time, and take it out somewhere else to clean it easier. I always found its best to double up on everything when I did DTW, and have 2 whole sets of equipment. Especially when growing perpetually. Have another entire clean reservior and pump setup ready to go and change over too, so you have more time to deep clean the dirty one.. Then keep swapping back and forth every so many changeouts..