I started using biocide last year after we received a pup that was sick with parvo. Couple words of warning as they feel obligatory.
DO NOT EVER MIX BLEACH AND ANY KIND OF ACID. This will make chlorine gas and has a very high likelihood of harming life or even killing it entirely.
Kk now that we've covered that, onto room turnover. Start with your basic cleanup -- sweep, dust, take all fans and lights down. Get a solid cursory clean knocked out as most cleaning agents are ineffective in the presence of organic matter. Gotta have everything "clean" so we can get it real clean.
Next, wipe everything down with ISO. Get all around the poles in the tent, every square inch you can reach. If you have a removable floor in the tent, pull that out and take it outside for its cleaning. Let the ISO fully dry and give it a couple hours just to be 100% sure everything is good to go. Next, follow up with bleach. A 10:1 mix of COLD water:bleach (
bleach becomes ineffective in hot water, so always use cold)
Not true. Bleach is as effective hot or cold. Get a rag nice and wet and soak everything in the tent. Once every surface is thoroughly wet and wiped clean, leave it to dry completely. This is critical -- you don't want to rinse the bleach off as it'll off-gas anyways and in the process will kill the majority of nasty shit as it does. Come back the next day and rinse everything off with a clean rag and water. Let dry.
I use hydrogen peroxide to neutralize then do a clean water rinse/wipe.
Now, for treating with biocide. I've used a couple different ones and prefer one over the other. Rescue (on amazon for veterinary use) is insanely effective. 1 cup per gallon of cold water goes a long way. This shit suds like crazy, though, and if you don't rinse it off it will leave everything with a sticky film. Follow the instructions for use. The other, called Sniper (also available on Amazon) is a use-right-from-the-jug variety. This shit is amazing. It's safe for kids, pets, you... and it cleans like a mofo. Also follow the instructions for proper use. Both are capable of killing 99.98% of microbiological life including drug resistant bacteria and viruses. Good shit to keep around the house in general.
For some of the cleaners (bleach solution, sniper, rescue) i actually load up a pump garden sprayer just because a fine mist can get places i can't reach with a rag. Just wear a respirator and eye protection as all that kind of shit is awful rude on the sinus and ocular cavities.
Now that all the heavy lifting inside the tent is done, anything you're going to reuse (lights, fans, plumbing, etc) needs to be cleaned. A round of ISO and a round of bleach is typically what I do. Be careful with ISO and bleach around electrical components as both are corrosive and can strip insulation from windings in fans as well as damage circuitry on LED boards. Big centrifugal fans get hit with some canned air or compressed air to clear out any dust accumulation.
The outside of the tent should get a good vacuum and wipe down with ISO. Given the environmental conditions the outside sees, I personally don't put too much effort into going "nuclear" as I do on the inside of the tent.
Didn't mean this to be condescending or dismissive of experience
@MDK, figured it's worthwhile to write up a process so other newer growers can understand just because harvest came, if they want to harvest again without problems, taking these kind of measures can be the difference between a headache for a next run or another end-to-end run without problems.