You mean the possibility of disease isn't enough to make you want o change the water? The ez cloner has a drain plug in the bottom to make that job a lot easier. Put it up on blocks or a shelf and it is a cinch to empty- you stil have to sterilize it between uses- run a weak bleach solution in it, allow to run, flip over the foam pucks during the cleaning.

I think you are a cashcropper so I am giving you advice to crank out WEIGHT.

The perpetual harvest is not the best way to grow if you are running all clones of the same strain. It's labor intensive and does not give you a time when the room is EMPTY and you can treat for pests. Having plants close to harvest at all times means you can never bug bomb the room.

I go perpetual only because I'm running over 20 DIFFERENT strains with different timing and needs- and I suffer badly for it- I've got a bug problem that is hard to fix because most pesticides can't be used within 3 weeks of harvest. I'm not after weight, but looking at strain performance with an eye to breeding. Otherwise I'd go to a single run SOG style grow with a harvest every 7-9 weeks depending on strain.

My grow guru is like, OHHHH man come ON, just do a SOG already, sheesh! I think he's sick of listening to me whine about it!

Larger plants don't mean more yield. Yield per plant sure but your ROOM yield depends on 2 things: Growing skill, and watts. There's less that can go wrong if you veg for a short time and flower at 8" or less, and do a proper SOG.