New AGA tanks have very small corner overflow chambers which make the installation of a Durso Standpipe a little more challenging.
The design pictured here is 98% based on the original design. The primary change is due to the fact that the original design does not fit in smaller overflow chambers.
The standpipe on the left (Larry Maras)shows a modified Tee Connector and Elbow Connector that have been trimmed and glued directly together thus allowing the intake to fit into a much tighter chamber.
The standpipe on the right (Jim Fox) follows the standard parts list and only requires a single piece to be modified. The picture on the right shows two standpipes. The first is an exploded parts view and the second is a completed standpipe.
Jim Fox provided these standpipe specifications on his 120 gallon AGA tank:
It is 22 inches from the bulkhead to the grill on the overflow chamber, therefore the main standpipe is 16½ inches including areas which slip into the tee and the reducer bushing.
A 1½ inch piece of one inch PVC is inserted between the bulkhead and reducer bushing. A two inch piece of 1¼ inch PVC is inserted into the top of the tee for mounting the cap. This leaves the cap almost flush with the top of the tee.
And finally cut ½ inch off the side of the street-ell that inserts into the tee. This will make the design small enough to fit into the AGA overflow chamber.