Is anyone having trouble finding chlorine tablets? 

The average Chlorine content in a pool is 2ppm, which should kill any bad bugs.

What mold needs to grow, Food source(wood, glue, organic material), Temperature, and Moisture.Cleaning the surface with chlorine and water only kills the superficial part of it but like most weed, unless you remove the hyphae(main root) and the mycelium (collection of roots) from the wood components all you are doing is a surface patch.

Having had a pool for 14 years we’d spend months on daily care and by august always have an algae bloom in it and have to hire someone to fix it and clean it which would cost around $1000 despite our chlorine levels and other chemical levels always testing right.

There is NO powere washer involved , it is a low pressure clean basicly using a strong chlorine solution with a surflactant

If your tenants are flushing baby wipes, feminine products, chlorine, lye-based drain cleaners, or anything else that can mess up the system’s biology, it can cost you.

I sold a house with a well that had some form of bacteria in it and it needed to be chlorinated and retested.

I am flirting with the idea of installing a whole-house water filter to reduce chlorine and other chemicals. 

I am flirting with the idea of buying a whole-house water filter to reduce chlorine and other chemicals. 

Some jobs require a mild detergent or chlorine bleach.