Frequently Asked Questions

General FAQ
We use superior materials for our tanks and our products are developed strictly to comply Malaysian Standards and International Standards.

Our gravity conveyor is recognized nationally as a Special Innovative Product in the Industry Excellence Award 2006. We are also recognized internationally with the International Trade Award for the Best Trade Name held in Madrid, Spain.

You can view our Tomher products in our showroom in Telipok, Kota Kinabalu or you can buy from our dealers all over Sabah:

Contact our Tomher Sales Department:
Tel: 088 – 788 999/ 088 – 393 118
Fax: 088 – 793 111
E-mail: info@tomher.com.my

Within 14 days, subject to stock and location of delivery.

We provide installation guidelines for products:
Water tank, septic tank, spiral pipe & gravity conveyor

We do not provide installation services for our water tanks, septic tanks and pipes. However, we provide first-time installation services for our gravity conveyors and spiral pipes. (Available upon request by customer)
Tomher Septic Tank FAQ
Before installing your septic tank, the Sewerage Services Department (SSD) for your local area must be consulted to determine the appropriate form of sewage treatment for your property or proposed development area. All septic tank systems need local authority approval first. This must be submitted for approval after a professional engineer endorses:

  • Tomher Septic Tank Engineering Design Calculations
  • Tomher Septic Tank Installation Drawings
  • Installation site plan

We can recommend competent professional engineers if you need any.

Before installing your septic tank, the Sewerage Services Department (SSD) for your local area must be consulted to determine the appropriate form of sewage treatment for your property or proposed development area. All septic tank systems need local authority approval first. This must be submitted for approval after a professional engineer endorses:

  • Tomher Septic Tank Engineering Design Calculations
  • Tomher Septic Tank Installation Drawings
  • Installation site plan

We can recommend competent professional engineers if you need any.

There should be no smell from your septic tanks under normal operating conditions, proper usage and maintenance. If your sewer system develops a smell, this is an indication of misuse, and you should have your system inspected, especially if the following occurs:

  • Water is draining away slowly
  • Drain pipes are making noise and produce air bubbles
  • Sewage smells are coming from house drains
  • Water is backing up into the house drains

These problems should be reported immediately to your maintenance company, contractor or individual responsible for the standard maintenance of your sewerage system, as they are indications that the sewerage system is being misused.

A concrete septic tank is “cast in-situ” which means the whole tank is manufactured on site. Concrete septic tanks have 2 chambers consisting of the primary settlement chamber and the filtration chamber. The filtration chamber works on downflow filtration using gravity to carry the partially settled effluent downwards through the filter bed (normally stone aggregate). This media is difficult (and heavy) to replace or clean, when it is saturated with biological growth.

Tomher septic tanks are prefabricated tanks and work on the principle of primary settlement and upflow filtration. The settled solid material remains at the bottom of the tank, and by displacement due to incoming material, the remaining liquid is then carried upwards into the filter chamber for anaerobic digestion through the filter chamber.

The filter chamber contains a unique proprietary technology called Bio-Balls which filter solids in the effluent and promote the growth of bacteria for digestion of organic material. These Bio-Balls are essentially maintenance free and easy to clean or replace.

Tomher septic tanks are designed for the treatment of organic waste from domestic, commercial and industrial premises. Inorganic materials such as paint, thinners, bleaches or other inorganic materials should not enter the tank as these will reduce or kill the bacterial growth in the Tomher septic tank.

Large quantities of food waste should not be introduced to the tank unless accounted for in the design calculations. This additional organic waste may cause problems in your sewerage system, and will reduce the interval for desludging and scum removal of the tank. Grease, oil, plastic materials, disposable sanitary products and other solid waste material should not be allowed to enter the Tomher septic tank. These materials may cause problems in your sewerage system such as blockages, excess scum levels and/or other problems relating to the correct operation of your septic tank.

Tomher Water Tank FAQ
All Tomher water tanks are rotomoulded using 100% New Zealand imported melt compounded resin to further enhance the appearance and durability of our water tanks.
The polyethylene resin we use for our water tanks is 100% food grade and comes from New Zealand which means your water is safe for drinking. The resin complies with AS/NZS 4020:2002, Products for Use in Contact with Drinking Water and AS2070 (1999), Plastic Materials for Food Contact Use.
Consider these before buying a water tank:

  • space allocated for water tank
  • purpose for buying water tank, i.e: for drinking water storage.
  • budget
  • tank size needed
It depends on your usage capacity. However, the most popular water tank size for domestic usage is 400 gallons.
All water tanks are delivered with tank installation guidelines stickers. To prolong the lifespan of your water tanks, please follow the installation guidelines.
Our water tanks are pre-fitted with a standard ¾” water tank connector for inlet, outlet and drainage. Other water tank connector sizes are available upon customer request.

10 years for water tank, 5 years for septic tank.

Tomher water tanks include features such as:

  • Unique special blue or black colour with superior mirror finish tank interior and exterior
  • Formulated with anti-oxidants to protect resin from degradation and for maximum UV protection
  • Imported melt compounded resin has superior mechanical properties compared to standard water tank materials
  • Enhanced water tank life span
  • Tank colours will not fade with time

The normal lifespan for our PE water tanks is 50 years with proper handling and installation. Due to the harsh climate in the South East Asia, normal plastic tanks are likely to degrade under direct sunlight.