serving the southeast for over 25 years!!

Northwestern Supply has partnered with Roth Global Plastics and their Roth MultiTank is the first tank of its kind. It can be used for water cistern, pump, holding, rainwater or septic tank. This is possible due to its special construction of an inner layer of FDA approved virgin HDPE, two inside layers of PE for improved stability, plus one outer layer of black and UV-stabilized PE.

Not only is it special in terms of its construction, it also has the best warranty the industry has to offer: lifetime corrosion protection and 5 years of labor insurance coverage (see warranty for more details).


Roth’s blow-molding machine utilizes a four-layer extrusion head that allows us to line the wetted surface of the tank with an NSF-61 listed resin so all Roth tanks (except our 300 G) can be used for potable water storage in addition to being used for onsite wastewater. This multi-purpose feature allows our distributors the benefit of stocking only one tank.


Roth Multi-purpose tanks are made by a state-of-the-art computer controlled multi-layer blow molding process produces perfect parts. Repeatable process, repeatable field performance you can trust. Our tanks are manufactured by a unique and proprietary blow-molding process resulting in the most structurally sound polyethylene tank on the market.  After decades of conventional technology, Roth brings 40 years of blow molding experience to the North American market. In fact, 1 out of every 2 tanks in Europe is of blow-molded construction.



Key Benefits of the Service

Roth Multi-purpose Tanks a ton of key benefits to having a Roth system with less worries and easier handling.

  No cracking or corrosion and is watertight with a higher life expectancy
  Strongest and most heavy duty poly tank on the market with true structural integrity
  Made of HDPE and lightweight with a simple user-friendly installation
  Suitable for septic, pump, and cistern applications, and no water backfill required
 Offers all accessories to complete a whole system, including the popular STAR® riser systems

Our staff is increasing the years of experience in wastewater and septic systems and our customer service makes us the best service oriented company around!
Our staff is fully capable of helping you guide through your wastewater/septic system or your rainwater storage system!
Our commitment is to our customer to have the most educational and enjoyable experience during these projects!
Interested In This Service? Make An Appointment