Spitting toilet bowl

If the toilet is older, you can probably afford to reduce the amount of water in the tank. My toilet allows me to adjust the level using a clip on the float.

Another option to use less water is a Toilet Bank. http://www.energyfederation.org/consumer/default.php/cPath/27_1232_280 this will reduce the volumne of water in the tank therefore reducing the head pressure during the flush.

I am sure the Tiger man has a better suggestion.

My toilet does spit water out and it feels disgusting. I have tried putting a brick in it which didn't help. Even if i cover the seat and flush but it still spits it on to the seat so every time to wipe it is another job.
Please suggest.

I cleaned all the holes under the rim until they appeared unclogged. I used a screwdriver to scrape away the majority of the build up. Then I scrubbed each hole with a nipple brush covered with lime away on the end, (protect your eyes). I then squirted lime away into each hole and left it sit as long as I could before the next flush, (good idea to potty before this step). Worked great and my toilet looks like new. Good luck and I hope it works for you. Please remember...you are working with chemicals that can splash into your eyes, as you are cleaning and flushing : )