Pool Filter and backwashing doesn't work after replacing O ring on Skimmer box? Hi I have an above ground pool with a Swimpro sand filter, the...

Hi
I have an above ground pool with a Swimpro sand filter, the O ring on the skimmer box be broken and water was leak. I replaced the O ring, which stopped the leak but now the filter doesn't work. When I turn on the filter, near was suction on the creepy crawly for about 30 second and then stopped. When I turn the filter to backwash, no backwash water be released. There was a previous answer about too much nouns in the skimmer box (http://au.answers.yahoo.com/question/ind... I tried the suggested solution but it still doesn't work.
Thanks in credit.
My washer is leak from the bottom when...
Answers:    Check the suction side of the pump, it sounds as if you have lost suction there, or you hold an airlock in the line to your skimmer box. Have a great time.
I involve to know the best instrument to...
What you can do is put some vaseline over the o-ring and make sure it doesn't pinch. If air is coming into the system you brawl to get it out. What you can do is run the filter and then put the hosepipe at the suction running out in the pool. This will fill it up and return with it going. If there is still an air bleed it will gradually get worse and stop.
Make sure everything is super tight.