Originally Posted by slartidbartfast
Using a Y-pipe seems like a simple way to eliminate a hose - but if the end of the hose gets plugged (mud, wasp's nest, etc.) it would direct accumulated rain water under the filler cap straight into the tank. That would ruin your day and you might have the tank apart for filter change a couple of times before you figured it out.
yep. there's a lot of 'if's' in life