±0.1mm
Precision Tolerance
35+ Years
On The Gold Coast
Full Range
Perspex, HDPE & More
Australia-Wide
Fast Delivery
At Holland Plastics on the Gold Coast, we fabricate custom sewage holding tanks and waste storage vessels in HDPE and polypropylene, subject to assessment of the application. Tell us what the tank will receive, how the contents are transferred and where it will be installed. Our focus is a fabricated storage vessel matched to your specification, not a claim that a tank alone provides sewage treatment or approval for a wastewater system.
Quick Facts
- ✓ Over 35 years experience
- ✓ No minimum order
- ✓ Fast turnaround
- ✓ Australia-wide delivery
Holding Sewage Is Different from Treating It
A holding tank stores a waste stream pending transfer or other management. A septic or wastewater treatment system has additional design, operating and approval requirements. Describe the role of the proposed vessel in your complete system and provide the designer's requirements. We do not present our custom tanks as certified septic systems or promise council approval, underground installation suitability or a standard treatment performance.
Describe the Complete Waste Stream
Specify whether the contents include blackwater, greywater, process wastewater, solids or cleaning chemicals. Include temperature, expected inflow, emptying frequency and any chemical exposure. Different mixtures and service conditions can affect the material and fittings. HDPE and polypropylene are proposed options, with the exact grade and suitability checked for the duty rather than selected by colour or thickness alone.
Plan Access, Connections and Support
Show inlet and outlet locations, drain arrangements, maintenance access and any required lid openings. Tell us about pump connections, surrounding pipework, cleaning access and available floor space. Ventilation, gas hazards and operating procedures belong in the system designer's assessment. Buried tanks, external soil loads and vehicle loads must not be inferred from a round-tank drawing; supply the installation and engineering specification for review.
Send Your Sewage Tank Requirements
Provide dimensions, working volume, quantity, waste-stream details, temperature and installation drawings. Our separate tank designer creates a front and top concept to attach to a quote, while the enquiry form accepts supporting documents. Brochure illustrations show configuration ideas only. We confirm material grade, thickness, connections, reinforcement and pricing for the proposed fabrication before work starts.
Frequently Asked Questions
Are these certified septic tanks?+
Can I bury the tank?+
What should I include in my quote request?+
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