Alpha 27 Gallon Holding Tank Outlet Confusion & Replacement Options

Alpha's published drawing for 138BLANK shows a 3-inch outlet hub, but it does not establish whether the tank delivered in this case matched the ordered configuration. The 138BLANK manufacturer drawing, Rev A dated December 19, 2022, depicts a 3-inch hub with an O-ring groove near the deep end of the tank. It lists an O-ring and clamp in that drawing's assembly. This is evidence for that documented configuration, rather than a rule that every tank sold as blank has a standard outlet.

There is a naming and description conflict to resolve: Alpha's current tank index labels the matching 22-inch-wide by 46-inch-long by 8.5-inch-deep, nominal 27-gallon entry 138RAW, while linking to the 138BLANK drawing. The ERVP 138BLANK listing uses blank/no-pre-drilled-hole wording. Do not use either the suffix or the nominal footprint alone to decide what ports should have been supplied. The drawing also states reference dimensions with a ±1/4-inch tolerance and approximate capacity that can change with fittings and shrink.

To determine whether the supplied tank was correct, compare the order's exact part/configuration, the tank's molded identification or label, photographs of every port, and hub location measured from a stated edge and viewing direction against the supplier's approved drawing and revision. Confirm the physical clearance around the projecting outlet as well as the tank body. A matching capacity or body size does not approve the outlet location for the installation.

If that outlet conflicts with the required layout, keep the tank unmodified while the discrepancy is documented. Neither relocating/removing the hub nor a no-outlet alternative is approved by this drawing. The public question does not establish an order error, an accepted return/exchange, a refund or a replacement shipment; those require a separate review of the actual order, supplied configuration and applicable terms.