All our liquid storage tanks are built with the following:
* 2 or 3-inch poly welded inlets
* Lock on dust caps
* 2 or 3-inch poly flanged outlets
* Inlets and outlets are poly welded
* Heavy duty butterfly valve
* Internal suction elbow for emptying to the bottom
These fittings are welded in place with the greatest care and expertise possible. The inside of the tank is clean, seamless, crack-free, and overall simply of the highest quality.