In the movie “Tommy Boy” the late Chris Farley is trying to convince a customer to buy his company’s brake pads. Farley’s company makes the best brake pads in the industry and is competing against a low cost knock off. To counter the cheap knock off Farley offers this line “Hey, if you want me to take a dump in a box and mark it guaranteed, I will. I got spare time. But for now, for your customer’s sake, for your daughter’s sake, ya might wanna think about buying a quality product from me”. His point being that the cheapest thing in a box is just that, the cheapest thing in a box.
Flexible PVC tank liners are no different. There are numerous formulations of PVC each with their own qualities and characteristics that can make a world of difference in terms of performance and service life. The other consideration is fabrication techniques. Poor, quick, cheap fabrication techniques lead to liners that fit poorly. Besides being more difficult to install, poorly fitting liners can form puckers or sharp corners. These areas become stress points on the liner which cause premature failure. Furthermore, poorly fitting liners can interfere with process work and, in the case of containment areas, be a safety hazard in walk areas.
In our 40 plus years of operations, Witt Lining Systems has developed and perfected methods for fabricating liners with fabricated bottom corners, vertical and horizontal creases, and added top corners. This type of fabrication requires extra steps as well as specialized equipment. The result, though, is a proper, form fitting liner that functions exactly as intended versus liners that are made by heat forming corners or just joining two pieces together with an inferior butt weld. Witt PVC liners are designed to fit exactly in the structure they are lining to provide you with a liner that performs to the highest of expectations. Or you can take your chances with the cheapest thing in a box!
For more information on these techniques please see our white paper on that by clicking here.
Here are examples of what some other companies have passed off as properly fitting drop in liners:
A great fitting Witt drop in liner!