so I have the stock 400lb in the ski locker. bag has a notorious habit of filling up with air all the time. best way to "burp" it??
I eventually want to add a 3-pump setup, but probably a good year away so really want to do something that won't be a waste of cash down the road. don't mind adding another thru-hull...

really not much room to work with the fill/drain lines in that small area either. I think the drain line off the bag to the pump is less than 4 inches..

any suggestions???