These rib drawings should be modified with a notch to slide onto the keel and remember to keep the depth of the ribs all the way to the bottom of the keel, since they do not rest on the bottom plate. Some ribs that are on the base plate may need to have a notch added to their ...
By fitting a pipe (the “riser tube”) to the hole and running it to the bottom of the tank, we still have a hole in the side of our tank, only the water has just got a longer way to travel now to get out, from the bottom of the tank, all the way up. Now, when the wate...