2,015 gallon galvanized steel cistern
2015 Gallon

Rainwater Tank Construction

Texas Metal Tanks manufactures both traditional galvanized cisterns and stainless steel cisterns. All tanks are suitable for potable (drinking) water.

LIFE SPAN: 30-35 years
WARRANTY: 1 year

With almost 90 years of history, the galvanized steel tanks are G-90 grade 20 gauge metal made in the USA. We do not import foreign steel. The top is 22 gauge. After the tank is constructed, a paint / epoxy lining is applied to the interior of the tank to provide a protective barrier between the water and the metal itself. This product is FDA approved for potable (drinking) water applications and is ANSI / NSF 61 certified. Each tank is tested at the factory to ensure that it is watertight.

LIFE SPAN: 50+ years
WARRANTY: 5 years

We manufacture type 304 stainless steel cisterns. The sidewall and bottom are 20 gauge and the top is 22 gauge, all from domestic, US steel. We use stainless steel rivets in the construction process making them more durable. The tanks utilize a FDA approved NSF 61 certified sealant on the inside. Stainless steel tanks are actually an alloy – the addition of chromium to the steel greatly increases the corrosion resistance of the metal. Stainless steel tanks will generally maintain the same look throughout their lifespan.

300 gallon stainless steel cistern
300 Gallon

Standard Rainwater Tank Dimensions and Pricing

Lead Time: 3-4 weeks on standard tanks. Note: Dimensions are eave height. The top adds 6 – 20” to total height, depending on size of tank.
Pricing includes 1 outlet. See ordering information below. Prices subject to change without notice. Other custom sizes are available.

Sales Tax: There is no sales tax in Texas for rainwater tanks.

Fittings.

Most tanks take three fittings – an inlet, an outlet, and an overflow. Prices above only include one bulkhead connection for an outlet. All other fittings are optional.

INLETOptions include 3”or 4”male PVC adapter or a basket. The PVC adapter goes in the side of the tank on the side. Connect 3”or 4”schedule 40 PVC. The basket comes in two sizes, 12” or 16”. This is inserted in the top of the tank near the edge. With a basket, you can spin the top so that the basket is under a downspout. With the basket positioned correctly, secure the top in place.
OVER-FLOWOptions include 3” or 4” male PVC adapter. The overflow sticks out about 2”. You can leave it as is, extend it, or run pvc pipe to the ground and direct the overflow as appropriate.
OUTLETOptions include 3/4”, 1 1/4”, or 2” PVC bulkhead connection. This watertight seal is threaded. Most tanks 1000 gallons or less get a 3/4” bulkhead. This allows you to screw in a 3/4” spigot. Attach a hose and you can gravity feed the water to your garden or trees. If you are going to pressurize the water with a pump, or may do so in the future, choose an 1 1/4” or 2” bulkhead. You can always reduce it with a bushing.
rain storage tank fittings, inlet, outlet, and overflow

Delivery:

We can deliver tanks within 250 miles of Drippings Springs on our trailer. We also ship tanks UPS or use a dedicated trailer especially for customers further away. Fees based on distance, quantity and size. For UPS shipments, we can wrap tanks in cardboard and place on a pallet. Be forewarned: shipping is very expensive and can cost as much as the tank, especially for small tanks.

Pick-up:

You may pick-up your tank at our factory in Dripping Springs, TX. Pick-up times must be scheduled in advance, and you should bring at least 6 straps – 3 for the tank and 3 for the top. The top is only held on by four screws and tanks do not ship with the top screwed on! Tanks over 1000 gallons are transported upright and will not fit in a standard pick up. 1000 gallon or less can transport on their side and will fit in a full size pick up, although the tailgate may have to be lowered. Please make sure your tank will fit in your truck / trailer.

Product listings.

  • Metal storage tanks + cisterns
  • Metal rainwater tanks + cisterns
  • Metal stormwater tanks + cisterns
  • Metal well tanks + cisterns
  • Metal rain barrels
  • 90 Gallon Rain Barrel, Galvanized Steel
  • 90 Gallon Wildlife Waterer / Water Guzzler, Galvanized Steel
  • 200 Gallon Wildlife Waterer / Water Guzzler, Galvanized Steel
  • 250 Gallon Wildlife Waterer / Water Guzzler, Galvanized Steel
Galvanized Steel Rainwater Tank

140 Gallon
150 Gallon
200 Gallon
300 Gallon
400 Gallon
500 Gallon
830 Gallon
1,000 Gallon
1,200 Gallon

1,500 Gallon
1,680 Gallon
2,000 Gallon
2,500 Gallon
2,600 Gallon
3,000 Gallon (Custom tank)
3,200 Gallon
3,750 Gallon
5,000 Gallon (4,800 gallon capacity)

Stainless Steel Rainwater Tank

140 Gallon
150 Gallon
200 Gallon
300 Gallon
400 Gallon
500 Gallon
830 Gallon
1,000 Gallon
1,200 Gallon

1,500 Gallon
1,680 Gallon
2,000 Gallon
2,500 Gallon
2,600 Gallon
3,000 Gallon (Custom tank)
3,200 Gallon
3,750 Gallon
5,000 Gallon (4,800 gallon capacity)

Slimline Rainwater Tank, Galvanized Steel and Stainless Steel
  • 233 Gallon
  • 467 Gallon

Other custom sizes are available.