You must maintain a 2" air gap from indirect waste to sewer waste.
If sewage back up was the issue, I would recomend "directly" piping the 2 inch drain to the main sewage with a 2 inch normally closed backwater valve. If you piped an indirect drain you would not be protected from sewer back up. I assume this is for a sink perhaps in a basement?
Yes, it is possible to install a waterproof shower ceiling in a bathroom to prevent water damage and mold growth.
If possible, install hammer arrestors in hot and cold water mains.
Yes, it is possible to install a tankless water heater outside, but it is important to ensure that it is designed for outdoor use and protected from the elements to prevent damage.
You should install a drain to prevent stagnant water from accumulating and hopefully prevent bacteria such as legionnaire or other water borne diseases and most importantly this drain should empty as an indirect waste as per modern codes
Yes
No, it is not possible to install a P-trap lower than the drain pipe in a plumbing system as it would prevent proper drainage and create a risk of sewer gases entering the living space.
The main way it to have watertight doors and bulkheads.
Yes, it is possible to install a faucet cover to protect the hot and cold outside faucet from extreme temperatures. These covers can help prevent freezing and damage to the faucets during cold weather.
Yes, it is possible to install a waterproof flat roof on a residential building. This type of roof is designed to prevent water from seeping through and causing damage to the building. Proper installation and maintenance are key to ensuring the roof remains waterproof.
Mutual restraint that helps prevent hostilities from escalating. Best wishes...
One might be able to prevent children from finding information such as how to make a bong at home by monitoring the websites they visit. It is also possible to install monitoring software.
No, tighten it to prevent sparks and a possible fire.No, tighten it to prevent sparks and a possible fire.