Knocked a few things off the list

[bsteckel]

r wilson .. how did you make out with those thru hulls and check valves???? i have one i need to replace that drains my fish box, but it looks like it has some kind of check valve inside it to prevent water from coming inside.

looked at those thru hulls from marinedepot .. they do not have the one way flow????

i assume some do and some do not? i need to buy a few, but want to get the correct ones..