[Chester Stone]

Shamu406, last year I installed 12 golf cart batteries and installed centralized watering system as you describe. Not only does it make watering the batteries quick and easy, but the caps basically seal the batteries which should do away with gassing and corrosion. I had the same system on a previous motorhome. I purchased mine on eBay from Liquid Precisions, Inc. at a cost of $318. I added a small amount of water to mine yesterday and it took about two minutes. You can also install a plastic tank in the battery bay which will automatically add water as needed.