Underground GRP water tanks that keep water cool, with a 25-year warranty
We make each buried tank to order in our factory in Dammam Third Industrial City, at the capacity and diameter your site needs, and deliver it ready to bury with an installation guide.
- 25-year warranty
- Common sizes in stock
- Any capacity to fit your site
- Delivery to every region
We reply within one working hour, Saturday to Thursday.
Why villa owners choose a buried GRP tank
A buried tank stays out of the sun, so the water reaching the house is far cooler in summer than from a roof tank.
GRP does not rust or corrode, and its opaque wall keeps light out, so algae cannot grow and the water keeps its taste.
- 18 mm GRP wall on a 10,000-litre tank
- 50 cm inspection manhole for easy cleaning
- 2-inch and 1-inch inlets and outlets fitted, with vents
- Lifting lug for safe crane placement
From our factory and delivery sites
Real photos from the Laura factory in Dammam and from loading and delivery.
Any capacity, on the diameter that fits your plot
We build on fixed diameters from 1.20 to 3.50 metres and set the length by capacity. So we can make 6,500 litres at 1.20 m diameter for a narrow plot, or 10,000 litres at 1.80 m diameter and 4 m long.
| Capacity | Diameter | Approx. length |
|---|---|---|
| 3,000 L | 1.20 m | 2.60 m |
| 5,000 L | 1.20 m | 4.50 m |
| 5,000 L | 1.50 m | 2.90 m |
| 8,000 L | 1.80 m | 3.00 m |
| 10,000 L | 1.80 m | 4.00 m |
| 15,000 L | 2.00 m | 5.00 m |
| 20,000 L | 2.00 m | 6.50 m |
| 25,000 L | 2.40 m | 5.50 m |
| 30,000 L | 3.00 m | 4.50 m |
Who digs and who pours the base?
Burial conditions in short: at least 10 cm of blinding concrete, a 10 cm bed of clean sand under the tank, a reinforced concrete slab at least 10 cm above the tank, no more than 20 cm of backfill on top, and a pit no more than 60 cm longer than the tank.
- We build the tank, deliver it, place it by crane on request, and send the installation guide with the quote.
- You or your contractor prepare the block-walled pit, blinding concrete, sand bed, concrete roof slab and backfill.
The 25-year warranty and how to keep it
The factory guarantees the tank for 25 years from the invoice date against manufacturing defects, provided the installation conditions are followed.
It does not cover breakage from backfill containing rocks or from a broken concrete slab above the tank.
Frequently asked questions
How many litres does my villa need?
A common rule: people in the house × 150 to 250 litres a day × two or three days in reserve. A family of eight usually needs 3,000 to 6,000 litres; we help you choose when you ask for a quote.
Will the tank crack under soil pressure?
The tank is built to be buried and stays sound when installed to the guide: a concrete slab carries the load above it and backfill on top stays within 20 cm.
Will the water taste change or grow algae?
The wall is opaque and the inner surface smooth, so no light gets in and algae cannot grow. We recommend cleaning through the manhole every six months.
How soon can I get the tank?
Common sizes are in stock; other sizes take about a week, depending on the order.
Do you deliver to my city?
Yes, to every region of Saudi Arabia. Delivery and crane placement are priced in the quote, or you can collect from the factory.
Related pages
Villas and homes
Cooler water in summer, no rust or algae, and a clear split of who digs and who pours.
Underground installation
Pit, sand bed, backfill and slab, step by step.
Delivery
From Dammam to any region, priced in the quotation.
Septic tanks
One sealed piece with one or two chambers to your municipality's requirement.
Ready for your quote?
Send the type, capacity and city, and we reply within an hour.