I am wanting to weld my bulkhead into keggle and welder said he would not be able to make the weld sanitary underneath the dip tube nipple inside of the keg. He said if we could do away with dip tube nipple then it would be no problem. So......my question is if I use a different fitting and do away with threaded dip tube nipple on inside, would there be away to still use a dip tube? Thanks.