T.G. Rankin Co. is proud its long tradition of supporting clean water and environmental issues through continued support and development of wastewater treatment technologies. 

This problem solving PVC pipe fitting was designed for easier septic filter Installation in hard to reach places.  No more fighting with outlet pipes that are flush against the septic tank wall. Simply hammer in the PVC friction fit Extend & Lok™ and that’s it! The filter or inlet tee now can easily be installed and centered under the riser. Extend & Lok™ Makes for Easy Installation on existing systems. Many other uses too! Polylok Effluent Flow Controller Ideal for alternating or dividing flows between two separate fields. Attach directly to SCH 40 or SDR 35 pipe.  Unique channel split design enables an equal split of effluent-waste stream.  The valve can be set for equal distribution (factory setting) or all distribution to the right or left.   All in one design allows flow to be directed or divided. All inlets and outlets accept 4" SCH 40 or SDR 35 pipe Flat plane to confirm level installation Inspection and adjustment port may be extended to grade level Polylok Roto-Flow Roto-Flow enables equal distribution of effluent to your leach fields. Available in 3’’ and 4’’ pipe sizes, Roto-Flow is the low-cost solution to D-Box flow regulating.  Simple design of Roto-Flow for D-Box outlet pipes is the easiest “set & forget” flow regulator available. The Roto-Flow fits both Schedule 40, SDR 35 and thin wall pipe sizes. Simply place the Roto-Flow into the D-Box outlet pipe, and adjust to equalize flow.   Roto-Flow is made from HDPE; it is designed to stand up in the septic environment without failing. Roto-Flow design insures proper fit in all pipe sizes.  Roto-Flow is made to fit pipes without collapsing or creating a loose fit. This guarantees equal flow performance.
SJE Rhombus Model TD ( Timed Dosing ) pump control panel  Model TD control panel is an installer friendly, reliable means of controlling one singe phase effluent pump in on-site septic installations.  Time dosing prevents soil or system overload.   A low-level cutout float overrides the timer to prevent the pump from running dry. An alarm float activates the audio/visual alarm system indicating a high liquid level. Common applications include sand filter systems, pressure distribution systems, mound systems, drip systems or any application requiring timed dose control. UL/cUL Listed.  Product features:10" X 8" X 4" enclosure, alarm beacon / horn, silencer switch, programmable timer, pump circuit breaker, magnetic motor contactor, control and alarm fuses, terminal blocks, Switches: HOA, one (low-level cutout) 20’ PumpMaster; one (alarm) 20’ Sensor Float® Mini control.   For More information click here:  SJE Rhombus TD Panel Level Controls And Alarms SJE Rhombus was a pioneer in time dosing to prevent the overload of drain field soils.  They offer a wide variety of Liquid Level Sensing, Flow Control, Monitoring and Alarm Systems. Pump Starters, Custom Panels, Alternators for duplex sewage ejector systems, Hydro Pneumatic Controls, Electrode Alarms, Tel-A-Signal Systems and Panels to Print.  We can provide switches or panels one at a time or quantities and packaging for your most demanding OEM applications.  Click here for more information:  SJE Rhombus   Polylok D-Box Shown here is a 12” unit with grate cover and optional 6” tall stackable riser.  A 20” Diameter D-box is also available with either a solid or grate cover.  Click on the photo for a larger view.   Use as a Drop Box or D-Box, allows multiple configurations for inlets & outlets.  Use as a Drain Box with a plastic grate cover to collect surface water runoff.  The 12” box comes with two seals and threaded nuts for watertight pipe connections.  Optional risers (shown in photo to right) allow flexibility for installation at various elevations.   The 12” and 20" D-Boxes accept 2", 3", 4" Schedule 40 & SDR 35 pipe sizes. Both models now accept 4” corrugated pipe.  All Polylok risers have a patented tear off flange for casting into concrete that can be removed in frost prone areas when additional risers are added.  The 12” (shown) comes with anti-float feet to keep the unit stable during and after installation.  All polylok D-boxes can be ordered with a solid or grate cover.  Email us if you are interested in stocking Polylok D-boxes.
New Safety Item! Kidcatcher Septic Riser insert New Polylok Safety Basket Screen (Kid Catcher) fits inside our 24" and 20" Septic Tank Risers.  Fits right in the upper most riser-section, no extra parts to buy! Shown in the color green the Kid catcher will be yellow.  Polylok is the only manufacturer to offer a 20" Safety Pan (Kid Catcher)

Automated Fats Oils and Grease (Fog) Monitoring System

The GREASEwatch monitor uses ultrasonic transducers and an embedded microprocessor to continuously monitor the sludge, scum, liquid levels and temperature in your grease trap. GREASEwatch provides real-time information on incremental changes in the levels of floating solids, bottom solids and total solids at the touch of a button and can be monitored from any internet connected computer. For more information click here. All-Bend Multi-Angle PVC Pipe ElbowFinally, a pipe elbow with a selectable angle.  Whether you need a 1/4, 1/8, 1/16 bend or any bend in between you’ll always have the right one for the job. All-Bend^® is an easy-to-use two-piece PVC elbow that can be cut and assembled to virtually any angle.   This unique ability provides installers with unmatched flexibility and convenience while greatly simplifying the fitting of custom joints. Each All-Bend^® package comes complete with a two-piece selectable angle elbow, angle measuring templates and installation instructions.  All-Bend^® units are currently offered in white, rigid PVC for 1 1/2", 2", 3" and 4" pipe. The All-Bend^® is listed with IAPMO (Uniform Plumbing Code) and NSF International for ASTM standards D2665 (PVC Plastic Drain, Waste and Vent Pipe and Fittings) and also D2466 (PVC Plastic Pipe Fittings, Schedule 40). For more information click here: All-Bend 

Cultec Chambers

Cultec Chambers can be used in sub-surface on-site wastewater and stormwater management projects. Most commoly used as replacements for conventional pipe and stone trenches or beds and retention ponds. Approved in most states for septic leachfields. Reclaims land for other uses (parking/attractive landscape). For commercial developers, more parking and green space allows a greater amount of store space. Cultec is the most cost effective chamber design. Save on labor, time and land area required.Email us your requirementsT.G. Rankin Co. is proud its long tradition of supporting clean water and environmental issues through continued support and development of wastewater treatment technologies.  This website is meant to be a reference for all seeking to obtain the best value while doing the job right.  We work with and support many professional organizations, legislative and enforcement bodies in the areas in which we live and work.