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When it comes to safeguarding your home’s wastewater system, prevention is always better than cure. The Polylok PL-122 septic tank filter offers peace of mind — and long-term cost savings — by ensuring only clean, filtered effluent reaches your soil percolation area or soakaway.
A properly functioning percolation area or soakaway depends on wastewater being free from solids. If solids escape the tank and enter the drain-field, they can block perforated pipes or clog the soakaway, causing poor drainage, ponding, odours — and the need for expensive repairs or even a full replacement of your percolation area.
By installing a high-quality septic tank filter like the PL-122 Septic Tank Outlet Filter, you dramatically reduce the risk of soakaway failure — protecting your garden, avoiding costly repairs, and preserving your property value.
The PL-122 Septic Tank Outlet Filter is rated for up to 5,700 litres per day, making it ideal for typical residential or small commercial wastewater loads. It features 1.6 mm filtration slots (122 linear feet / 1/16″ slot equivalent), delivering a final filtration barrier at the outlet of your septic tank’s clarifier chamber.
This fine filtration ensures that solids, sludge and scum are largely prevented from exiting the tank — preserving the integrity of your percolation area or soakaway long-term.
Prevents percolation area blockages: By trapping solids before they reach the soakaway, you avoid the common and expensive problem of percolation-field failure — which often requires pipe replacement or even digging up the entire drainage trench.
Extends the life of your soakaway/soil filter: Cleaner effluent means less risk of biomat buildup or clogging, reducing the frequency of costly maintenance or replacing your soakaway.
Lower ongoing maintenance costs: Because the filter reduces the load on your percolation area, you may avoid emergency de-sludging, pipe flushing or full soakaway repairs — saving time, money, and hassle.
The PL-122 septic tank outlet filter installs quickly and easily — whether in a new system or retrofitted into an existing tank — with no need for complex plumbing modifications. The unit fits standard 110 mm (4″) outlet pipes and comes complete with its housing, ready to use out of the box.
When it’s time to clean the cartridge, an automatic shut-off ball is built in — so the system temporarily stops flow, preventing solids from leaving the tank during maintenance.
The Polylok PL-122 septic tank outlet filter is an essential investment for any septic tank installation in Ireland, the UK or Europe. By filtering your tank’s effluent before it reaches the percolation area or soakaway, you safeguard your drainage field, avoid costly soil-filter repairs, and reduce ongoing maintenance. Because it’s easy to fit and simple to maintain, the PL-122 makes the “prevention is better than cure” approach practical — and cost-effective.
For commercial filtration requirements see the PL-525 or PL-625
