What I did was cutter foam flush with the PVC and gorilla glued caps on because robs correct the foam soaked some water. Not sure if it was enough to make a difference but I don't want to change anything. Hopefully I'll be able to set these out with some limb lines soon. Tried it at Bodcau but I've caught nothing but mudcats out of there. Might try dorcheat...just need to find a good area.