Winterize question for warm climate

I hate to wear out this subject. I have read the many posts. I am in Fort Worth and we have relatively mild winters. We do get overnight freezes and sometimes it stays freezing throughout the day, but that is rare. My main question is: If I drain the back right and front left drain on the block, both manifolds, the elbow on the water pump and make sure all water hoses are dry won't that be sufficient? I think antifreeze is overkill in my neck of the woods. I know the PO and he just drained it. My concern is what percentage of water does that expell out of the block? Are they designed to drain out enough so there is not enough left to expand and cause damage? I looked for a cross section of an engine to see where the water is, but couldn't find one.

I got that. I just wanted to confirm that draining the block and all water lines was all there was to it, because it was not difficult and did not take long. Amazing that marinas charge so much...

Kirk,
Pull the plugs and then raise and lower the jack stand of the trailer. There really won't be much water left in the engine.

If you plan on draining frequently, did you see the thread with these stopcocks?

Those are the stopcocks I have on the block. And my boat is on a lift, so the boat is always level. Don't you think it will still drain enough out to be safe?

some of the newer boats have hoses hooked up with a little valve and are kept high, you simply grab the hose and lay it in the bildge and let it drain, it really is simplier than what I am describing, but if you use the boat occasionally in the colder weather its a pretty good set-up...same concept as the oil drain kit

anthonylizardi wrote: I think the total water is about a gallon or less.

The block and manifolds hold way more water than that. I always add 2.5-3 gallons of antifreeze after draining to fill them back up.