Good Evening All

I am currently building out my capability to maintain my own space. As such, I am seeking input from the community to build capability in water storage. I am tracking diversifying water sources and replenishment and have some projects towards that end. Still, I wanted to seek some knowledge regarding water storage, especially in non-permissive environments such as an apartment.

Some base concepts upfront: The primary leg of the water sustainment plan is to shoulder approximately 2-4 weeks of capability for sustainment for one individual. The limited space and location on higher floors prevent larger water container solutions, such as large drum barrels, due to weight concerns. I intend to rotate water at 6-month intervals; thus, I'm looking for more compartmentalized water storage solutions, preferably stackable to place within a closet space (limited sunlight, etc). Of additional note is that the flooring is carpeted. Intent for usage focuses more on cooking, drinking, and cleaning. Additionally - the primary plan in an emergency is to hunker down through the initial shock period (1-3 months) and assess for relocation unless other extant circumstances require me to relocate sooner.

Some focused questions I have are as follows - especially as an overall follow-up from researching on the subreddit and other sources (a lot of the threads are years old, so given increases in tech and knowledge, wanted to give a resource to my fellow people)

1. I'm seeing a lot of mixed info regarding the necessity of purifying water storage after filling up containers. Is this practice still applicable even with regular rotation of water? If so, what would be your recommended resource for storage on this basis? Would bleach or a more specialized long-term storage solution (water preserver, etc.) be applicable, or given the intent to rotate every 6 months, would tap water chlorine be sufficient?
2. Based upon the more seasoned people here, what ratios are recommended regarding using bleach for sanitation relative to per gallon? I have had bad experiences with attempting sanitation and having to subsist on hyper-bleached water, so I want to make sure my emergency supply is usable for consumption.
3. Aside from bleach, pre-prepared solutions, and pool shock, are there any other advised sanitation solutions that won't impact the ability to drink? Additionally, are water purification tablets used in storage, or are it more for austere water collection?
4. Regarding sanitation of containers - following CDC guidance - should I be re-sanitizing for each refill every 6 months? Also, in line with question #1 - would you suggest following CDC guidance in a washing and bleaching process or using another chemical solution?
5. Means of storage: Currently looking at this system (Aquabrick) which seems to be a stackable compartmentalized water storage system https://preparedplanet.com/products/waterbrick-water-storage-containers-x-8?_pos=2&_sid=3f117950a&_ss=r&variant=40007087226983 - anyone currently utilize this system and what are your thoughts? As an additional follow-up - what other systems (and, of course, more economical) would you recommend?
6. Means of extraction: Using the above link, they do offer screw-on gravity-based spigots, but they wanted to inquire about any recommendations for other types of spigots and their pros and cons(manual pump, electric, etc.) and if it would be warranted for also looking for a spigot filter.
7. Means of storage: Based on the carpeted environment and what I've noted as the risk of leakage - how would you recommend storing these containers to prevent water damage? I assume a tarp or even a shoe tray may work, but I wanted to see how you would store it to prevent immediate water damage and increase the probability of detection.
8. Usage of water: I am tracking the per gallon per person recommendation; however, I did want to inquire about lesser-touched water usage topics, such as laundry and hygiene. I have prepped in focusing more on "field showers" / prolific usage of body wipes for maintaining major hygiene for the month above period (having done so in the past for extended months) but was wondering if this would be advised against and if so, why? Additionally, I wanted to inquire how to process clothing for washing and minimizing waste best effectively and if there are any other areas of consumption I'm not assessing accurately.

And, of course, any other information you think would be applicable. More knowledge makes better planning, and I figured to touch on some SMEs here.

I appreciate this subreddit for existing, as recent events (and possible future events) demonstrate the need to begin investing more into having fallback systems.