once a week is recommended
You should get your floor machines serviced once every other year. They require regular upkeep in order to last a very long time.
Annually. If it`s fueled with oil absolutely annually.
Your fuel tanks are built to last the lifetime of your vehicle. They should only need to be serviced if they are damaged in an accident, or if some contaminant has been added to the tank.
once a year, or 15,000km whichever comes first.
use the trampoline tool which should come in a pack with your springs :)
no
Inspect at least once a year, base service on what you see.
HVAC should be serviced about twice a year. I prefer service just before summer so I'm not left in the heat and just before winter so I'm not left in the cold.
I have found that the filter should be changed around 90K in normal use and 60K in severe conditions. Toyota Tech.
You can buy a trampoline for a baby at your local baby store. However, you should not allow your baby to be on the trampoline because it will break and kill the baby.
The water purifiers should be cleaned and serviced on a regular basis to remove the water deposits. The water purifiers should be cleaned and serviced on a regular basis to remove the deposits left by the purified water.