If you questions have not been answered on other pages throughout the website, check out this page for answered to frequently asked questions about our products and our process.

Which type of plastic can you manufacture the tanks, pipe & ductwork?

High density linear polyethylene and polypropylene

Are the tanks you manufacture cross-linked?

No, you cannot use cross-linked in our process.  Cross-linked is not weldable.
Our tanks are used with high density linear polyethylene.

Which diameter and height the tank can be made?

We have molds for 26”, 30”, 66”, 7.8’, 9.2’, 11.2’ and 13.2’ ID.
Other custom diameters available upon request.

Height can vary from 1’ to 50’ tall.

Which temperature of material can be stored in your tank?

Polyethylene: Up to 120°F

Polypropylene: Up to 180-200°F (depending on the material being stored).

Can the tank be outdoors?

Yes, the tanks are available for indoor and outdoor.  We include a UV-Inhibitor. .

Which colors are available?

All colors are available.  Some colors will be an additional cost.

What is the warranty on your tanks?

Houston PolyTank, LLC’s tanks are warranted for a period of 1 year following the date of delivery to the original owner.  Extended warranty periods are available for an additional cost. Consult with factory for details.  If the product develops a defect during the warranty period, notify warrantor immediately.  For more details please check out our warranty information here.

How should I plumb my plastic tank?

Rigid piping must not be connected directly to a tank. Flexible connections such as expansion joints are required on every sidewall fittings to allow for expansion and contraction of the tank as it is filled and as liquid is withdrawn and also for fluctuation in temperature for uncontrolled environments.  We also recommend proper spring supports under heavy valves and fittings that may be attached to the tank fitting these will also reduce stress to the fitting and the tank during expansion and contraction.  These plumbing recommendations will reduce stress on the tank so it can last to its full life potential.

How should I anchor my plastic tank?

Tank anchor bolts shall only be hand tight to allow for expansion and contraction of the tank.

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