In the late 1960's William & Michael Kiely commenced to manufacture pre-cast concrete septic tanks. They soon became the major company of septic tanks in the Munster region and consequently proven W & M Kiely Ltd. Over the years the company is continuing to grow and we now manufacture a range of products including Septic Tanks, BioKast Sewage Treatment Systems, Grease Traps, Rainwater Harvesting Systems, Pump Chambers, Water Storage space Tanks, Effluent Tanks, Cattle Slats, Pig Slats, Sheep Slats, Beams, Pre-cast Cubicle Bedrooms & Pre-cast Walls. All our precast septic tanks are made to be 100% watertight. Our processing processes follow complete & thorough quality control techniques. Inlet and wall plug pipe connections are all gasketed. If the above-ground tank does work together with a leaching field, the sewage is typically transported in to the tank via a pump (rather than gravity.) This may cause the solids in the sewage to be cut into smaller pieces, and to avoid the tank along with the effluent.As well as septic tanks, from the beginning we've made well tiles, steps and deck slabs; adding manholes, get basins, wall and modular building panels, and different landscape what to the product range in more recent years, including pump chambers, transformer vaults and sail boat launch ramps. Find out if the city has or can buy a pump-out fish tank or tanker. Make certain the sludge pump (pump-out equipment) can be acquired and working.For all of your precast concrete needs in Wellington and the Wairarapa, contact Deco Precasters and receive a free quote. As plastic weighs in at significantly less than concrete, it is much simpler to get a clear plastic septic tank into the location for unit installation. These are only the initial questions. Such as other areas of science, answers are more likely to bring more questions.Precast cement on-site wastewater tanks have a specific gravity of 2.40 which allows the reservoir to avoid buoyant forces better than a tank made from lightweight materials. Designed for durability and strength, our products range from Structural Precast, concrete drinking water storage tanks and septic tanks, tool sheds, drainage and infrastructure products to tilt panels, beams, stairs, bridges and field culverts. Custom precast and one off items are no problem for our skilled production team.Regular treatment - modifications in flow from guests, parties or vacations do not affect performance. Comparison based on the weight of an septic container of 60 m3. 66 320 Kg for a concrete container vs 2109 kg for a fiberglass fish tank. The bottom of the excavation to be level and clear of stones and lumps which might cause damage to the concrete container. A 4″ level of fine sand is recommended for the bottom of the excavation.