Some toilet rules!

Dear guests. You are kindly asked not to throw toilet paper, sanitary napkins or other products that can clog the drain into the toilet . 'Into the toilet' sounds more natural at the end of the sentence.

The sewer pipes of the entire village are often invaded by the roots of the lush vegetation (usually oleander).   I changed the second 'often' to 'usually' because it sounds more natural not to use the same word in one sentence too much.

We invite you to respect this simple rule in order to not to have any unpleasant incidents that could make your vacation less enjoyable as well as lead to an increase of expenses, due to the intervention of expensive specific machinery.

Good job!