Tank Design Guide
When you order a tank we ask that you fax us a drawing of the tank with the fitting locations marked on the drawing. When you make a drawing for us, please take care to make your drawing accurate and easy for us to interpret. Please follow the guidelines below.
Discharge Fittings (waste)
We use dip tubes for discharge, they can be located on the top side or the top of a vertical side. Dip tubes are 1.5" female pipe thread and will accept straight or 90-degree pipe to hose adapters. Dip tubes extend down to the bottom of the tank. You will need 4.5" of clearance from the sidewall of the tank for our standard fittings and 2.75" for our low profile fittings.
Inlet and Vent fittings
Inlet and vent fittings can be located on the top or the top of a vertical side of the tank. The inlet fitting is 1.5" female pipe thread and the vent can be .5" or .75" female pipe thread. The inlet fitting requires 4.5" of clearance from the sidewall of the tank for a 90-degree fitting. Vent fittings require 2" of clearance for .5" 90 degree fittings and 2.25" of clearance for .75" fittings off the sidewall of the tank.
Suction Fittings (water tanks)
Suction fittings can be at the bottom of the tank or the bottom of a sidewall of the tank. Suction fittings can be .5", .75", or 1".
How to mark the Drawing
Download and print the tank diagram.
Use solid lines for visible fittings and use dotted lines for "blind side" fittings.
Identify each fitting - by size, (.5" or 1.5" etc.), function, (inlet, diptube, suction or vent.) and location (visible or blindside on the drawing, not after the tank is installed) Use the example below for a reference. Show each fitting on at least two views on the drawing.

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