Hi I'm new I have been taking care of my above ground pool for the past 5 years now with no real issues went to get my pool open today and notices a crack in the skimmer it was a harsh winter so i get it.... So i went to the store and purchased a hayward skimmer with wide mouth conversion I go to put it together and install it but it seems none of the screws go in all the way and i am turning with all that i got long story short its leaking so i have to start over what am i doing wrong. Thank you in advance for the help