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Septic Tanks

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Hume Pipes

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Frequently Asked Question

1. What is the size of the concrete septic tank suitable for my family?

As per the inner diameter of the tanks available we can explain usage period through a simple table we provides. You can adjust the usage period as per number of daily users in your family.

2. Will the excavation cost a lot?

The cost of the Pit digging will vary from LKR 10,000 to 16,000 if it is done manually. The difference is due the hardness of the Soil layer. Any way the customer can hire a JCB and complete the digging for a lower cost.

3. Will Derana Hume Pipe supply the total solution for installation?

Yes. DHP has 3 experience teams to carry out the Septic tank fixing for customers. But due to the supply capacity we always encourage customer to carry out the pit digging and fixing services themselves. The cost of the additional activities (Digging and Fixing) will vary between LKR 10,000.00 to 15,000.00.

4. Do we need a Boom truck to be hired to fix a concrete septic tank?

Not exactly. Our team will do the full installation even without a boom truck being used. This will help customer to reduce the transport cost since the normal boom truck hiring cost will vary from LKR 200.00 to 350.00 per Km. We at Derana hume pipes, use machine produced pipes to make septic tank under close quality supervision therefore the strength of the tank is guaranteed. Therefore it is not compulsory to use a boom truck for loading and unloading. There are instances the tank being hand carry for more than 100m from the main road to the installation place. The cost of such activity is depend on how hard the task is. Customer can negotiate the rate for such activity with Derana team during the site visit.

5. Are there low quality concrete septic tanks available in the market?

Yes. There are handmade concrete pipes using 8 feet long iron molds or using four number of 2 feet well rings. All these septic tanks are known as low quality products at considerably low cost. Finally customer will get a same size tank with the same appearance but with less strength and water leakages.


"DERANA ALL IN ONE" is a patented septic tank solution by Derana Expertise to reduce the land usage for the septic tank solution. "DERANA ALL IN ONE" does not require and additional soakage pit to soak away the filtered water. Read more about "DERANA ALL IN ONE"