Had an issue where the pipe nipple used for the ball valve was a tad loose in the hole that was drilled for it and it would just get worse over time due to opening and closing the ball valve, so I ran to the Depot and snagged up a couple things and fixed it. Now it is snug as can be and isnt going anywhere. Here is what I did: I got a cheap 3/4 x 1 1/2" pipe nipple (3/4 x 1" would have been better): I also went to my local Fastenal and got a pack of 1" stainless steel washers and attached them as you can see below. It is really tight now and won't budge, so mission accomplished. http://www.fastenal.com/web/products/detail.ex?sku=71031&ucst=t Just wanted to pass it on as this is better than a weld to me since it will never budge and is completely removable with two pipe wrenches. You can also buy a 3/4" pipe bushing and put it on the inside with 2-3 washers and tighten the ball valve on the outside. This method will probably be cheaper due to the less fitting and washers needed.