Blocked drainage systems are one of the most common and costly maintenance issues in schools, commercial buildings, and construction projects. Plaster, clay, and other solids can quickly build up in pipework, leading to blockages, overflows, and expensive repairs. This is where stainless steel plaster and clay arrestors play a critical role.

At Marko Stainless & Aluminium, we fabricate stainless steel arrestors designed to capture solids before they enter the drainage system. Built for durability and easy maintenance, these arrestors help protect plumbing infrastructure and reduce long-term maintenance costs.

What Are Plaster and Clay Arrestors?

A plaster arrestor or clay arrestor is a drainage device installed to trap solids such as plaster, clay, grout, and sediment before they enter sewer or stormwater systems. These arrestors are commonly used in:

  • Art rooms and ceramics classrooms
  • Trade workshops and TAFE facilities
  • Construction wash-down areas
  • Commercial and industrial buildings

Without an arrestor in place, solids can harden inside pipework, causing severe blockages that are difficult and expensive to remove.

Why Stainless Steel Arrestors Are the Best Choice

1. Strength and Durability

Plaster and clay arrestors are exposed to abrasive materials and regular cleaning. Stainless steel arrestors resist corrosion, impact, and wear far better than plastic or mild steel alternatives. This makes them ideal for long-term use in demanding environments.

2. Easy Cleaning and Maintenance

Maintenance staff need arrestors that are easy to access and clean. Stainless steel units are designed with removable baskets or chambers, allowing solids to be removed quickly and safely. Smooth stainless surfaces also make cleaning faster and more hygienic.

3. Hygienic and Non-Porous

Stainless steel does not absorb moisture or odours. This helps prevent bacteria build-up and unpleasant smells, particularly in indoor installations such as school art rooms or workshops.

Plaster Arrestors in Schools

Schools often underestimate the impact of art and ceramics programs on drainage systems. Clay, plaster, and slip can easily enter drains during clean-up, leading to ongoing plumbing issues.

Installing stainless steel plaster arrestors in schools helps:

  • Protect drainage systems
  • Reduce maintenance call-outs
  • Prevent classroom downtime due to blocked drains
  • Extend the life of plumbing infrastructure

At Marko Stainless & Aluminium, our arrestors are fabricated with education facilities in mind, ensuring durability and ease of maintenance.

Clay Arrestors in Commercial and Industrial Settings

In commercial and industrial environments, clay arrestors are commonly used in:

  • Workshops and fabrication facilities
  • Construction sites
  • Industrial wash-down bays

Stainless steel clay arrestors provide a robust solution capable of handling high volumes of solids without degrading over time.

Custom Fabrication for Your Project

No two sites are the same. That’s why custom stainless fabrication is often the best solution for arrestors. At Marko Stainless & Aluminium, we can fabricate arrestors to suit:

  • Specific flow rates
  • Installation constraints
  • Floor or above-ground configurations
  • Integration with existing drainage systems

Custom fabrication ensures the arrestor fits the site perfectly and functions as intended.

Stainless vs Alternative Arrestor Materials

  • Plastic arrestors: Lightweight but prone to cracking and deformation.
  • Mild steel arrestors: Can corrode and require frequent replacement.
  • Stainless steel arrestors: Corrosion-resistant, durable, hygienic, and long-lasting.

For schools and commercial buildings, stainless steel provides the most reliable long-term solution.

Why Choose Marko Stainless & Aluminium?

  • Trading since 1994
  • Australian-made stainless steel arrestors
  • ASSDA accredited fabricator
  • Experience across school, commercial, and industrial projects
  • Products available via plumbing wholesalers or direct

Our arrestors are fabricated to withstand real-world conditions and ongoing use.

Conclusion

Stainless steel plaster and clay arrestors are a simple yet essential component in protecting drainage systems. By trapping solids before they cause blockages, these arrestors save time, money, and disruption across schools and commercial facilities.

Call to Action

Contact Marko Stainless & Aluminium today to discuss stainless steel plaster and clay arrestors for your next project.