There is about four to five gallons wasted if you flush a toilet but I don't believe that it makes a difference if the handle is loose or not. Unless, the toilet is leaking from the handle or somewhere else.
Broken toilet flange. Toilet flange bolts may be loose.
Pull the toilet. Check the closet flange. If it is not loose or broken, replace the wax ring and closet bolts. Reset toilet. Level with wobble wedges. Caulk base of toilet.
There are several options to fixing a door handle if it is loose. The simplest method is to use exposed screws with a threaded spindle.
Yea, i just blew up the toilet
I am paraphrasing to be sure I am answering your question... I think you are asking... "How do you prevent a loose toilet seal?" answer: Most seals, for a toilet, are a problem if the floor is not level or the toilet sits on a non level surface. If the toilet moves side to side or front to back then the seal WILL fail! Additionally, if you have removed the toilet you must ALWAYS install a new seal.
Your water lines aren't properly isolated. when you flush the toilet and your water lines are refilling with water it can create water hammer. This is usually worse if your water pipes are either not properly supported or come in contact with wood joists or studs. You may also have very high water pressure which means a lot of air comes through with the water, try closing the water inlet a little. A loose washer on the shut off valve for the toilet can cause the jackhammer sound you describe.
What is wrong with the shower handle? Loose? Too tight? Leaking? Not working?
If the handle is loose on a security door, the owner should call the manufacturer, who will supply them with the tools to fix it. For security doors, they will likely send a ring shaped screwdriver, which should effectively tighten the loose screws.
get a book and find out numptey
A flush diet is for someone that is trying to loose weight. It is basically a detoxification of something from someones diet. They stop cold turkey and they don't eat it anymore. Flushing it from their diet.
You can easily fix a lose Kwikset door handle by taking the appropriate screwdriver and tightening the screws that attach the door handle to the door frame.
Sounds like you left a retaining clip loose on one of the pull rods.