I am on my second leaking Nature 2 filter this summer. I have the filter located approximately two feet out on the return line. Both times, the leak is not around the connection, but actually at the top of the filter. I have a Polaris pump located another two feet after the filter. I have my suspicions that the pump pulls too much pressure on the filter, hence the leaks. Has anyone else had a similar experience? If so. please share! Thanks!