i ordered http://shop.grasscity.com/shop/grasscity/PB171.html im having a bit of trouble with the base fitting onto the bong, i dont want to try and force it because i dont want to break it. the bong doesnt fit into the base and i cant easily push it into the cap thing while the cap is in the base and also cant easily push it into the base while the cap is on the bong. HELP!