dunno abt the drylok but for your intake you could try panty hose to cover it I have seen that one mentioned numerous times
well adde3d the rest of the jagged parts. still have to rough them up and shape them. also added 2 small 3/4" caves and some foam. I ran out of foam
Where are you located?
What kind of repair? Does the tank leak?
I also didn't know, until being told by my better half, that our goodieds will nibble at fingers too... it was quite the surprise