Customer service is our forte! Once you have purchased or recommended a 'COMMANDER' product, you are assured of service for five years.

Commander products are warranted for a period of five years against any manufacturing defects. The in-house R & D department rigorously tests all products to work for a minimum 2,00,000 operations.

Our qualified & experienced service technicians are well equipped to provide fast service backup to our valuable customers. Spares manufactured in-house help us to give immediate replacements. Commander also provides pre & free installation guidance to help the plumbing fraternity to install the products correctly, ensuring trouble free operations year after year.

Service Center :

Customer care email-id :

Mumbai – 28574505 / 66688103
Pune - 020 46720440

Ahmedabad – 079 32206648

East Zone
Kolkata – 033 25907092/1

North Zone (Delhi) - 011 24373568 / 24370604
Gurgaon, Noida, Punjab, Himachal Pradesh

Lucknow - 0522 4013152 / 2435124
Allabhad, Uttaranchal, Agra, Kanpur
Jaipur – 0141 2223440
Jodhpur, Kota, Udaipur, Bikaner

South Zone - 0484 2405674 / 6588285
Cochin, Calicut, Trivendrum

Karnataka - 080 26566880
Hubli, Raichur

Secundrabad – 040 64638363
H’bad, Vishakhapatnam, Vijayawada, Telangana


What is Discharge rate?

The discharge rate of a cistern is the actual water quantity that leaves the cistern during the flush process and not the contents (volume) of the tank.

What is the meaning of Flow rate 2.0 1/s?

For a high flush, flow efficiency in horizontal drains a flow rate of at least 2.5 1/s is required.

What are basic requirement of flush efficiency?

The main judgment of flush efficiency in a water closet is the proper flushing out of waste and paper.

During the first half of the flush process a half cistern is empty, the above mentioned solid matters should have left the water closet.

If paper and waste pass too late or not at all, the reason might be an insufficient flow rate of the cistern or the construction of the water closet.

How to judge insufficient flow efficiency?

. Due to flow rate per second, which results in a low hydraulic depth of flow in the horizontal branch drain

. Due to less gradient (slope) or to small flush quantity, which result in a low velocity of water flow in the horizontal branch drain. The critical limit in this pipe section is 0.6 m/s.

Modern technology is a boon to mankind, considering it lives up to its promise.

At Commander Watertech, continually delivering advanced flushing systems with latest technology has been the impeccable norm since 1961. Backed by this solid reputation and the sincere desire for customer satisfaction, Commander Watertech presents the seal of trust which represents your firm convictions and belief in us. We in turn will continue to uphold this trust with utmost care and commitment. With customer service our forte, our wide range of high quality products will always perform... with trust.