Cleaning the rug.

A normal household should have them cleaned about once a year. If you have a lot of people or pets, have it done more often. Many people purchase carpet cleaning machines to take care of the carpets in between professional cleanings, they do work and are handy to have. Here are some tips.

https://www.today.com/series/how-often-should-you/how-clean-your-carpet-t25176

https://www.homeadvisor.com/r/carpet-cleaning-mistakes-to-avoid/

http://www.carpetprofessor.com/Reputable_Carpet_Cleaning_Care_Guide.htm

Even though I live alone, I have a lot of pets and visiting pets, so I have a service come in once every 3 months.

You can rent a carpet cleaning machine from almost any grocery stores. They also sell the cleaning solution needed. I have used them in the past and was happy with results. Best of luck to you.

once the kitchen rug were recovered with another material that was glued on, then how is it cleaned

The rug doctor renrals at the supermarkets work very well.

Ok