Bargain Cave ~ Huge Discount Offer!
The bargain cave is a collection of clearance and discounted items.

Eljen delivers proven, reliable wastewater treatment technology designed to keep your system performing at its best. Offering advanced drain field solutions for your tough jobsites across the State of Idaho. Eljen products offer a cleaner, more efficient alternative to traditional systems — without the maintenance headaches.

✔ A42 Geotextile Sand Filter – A versatile, widely approved system built for consistent performance in varied soil conditions.
Whether you're a homeowner, builder, or installer, our team is here to help you size & design the right Eljen system for your site.
Contact R.C. Worst & Co. today for specs, pricing, or design assistance for all Eljen Systems in Idaho!

Idaho Design and Install Manual
Idaho Installer Training Video
https://rcworst.com/collections/eljen
Q: What is an Eljen GSF Geotextile Sand Filter system?
A: In Idaho, Eljen is categorized as a proprietary wastewater treatment product.
Q: How does an Eljen GSF system work?
A: Eljen is a passive drain field product that keeps the treatment aspect of the system strictly to the drain field.
Q: When is an Eljen GSF system required instead of a traditional septic system?
A: Eljen is a great option when the effective soil depth to groundwater or other limiting factors is shallow. In Idaho, Eljen meets the criteria for NSF40 treatment as well. This means it can be used in a number of different scenarios where a treatment system may be required.
Q: Is the Eljen GSF system approved in my state?
A: Eljen is approved in Idaho!
Q: How long does an Eljen GSF system last?
A: There isn't a right answer here due to the number of variables. Although with regular effluent filter cleaning, regular recommended tank maintenance, proper sizing, & proper installation, systems could last 20-30 years or possibly even more than 50 years.
Q: How much space does an Eljen GSF system need?
A: In Idaho, Eljen falls under the treatment category, which with an increased loading rate, can shrink the footprint of the overall system. However, the size of each system is heavily dependent on the soil type, the site conditions, and the conditions of service (In Idaho, typically GPD).
Q: Can a homeowner install an Eljen GSF system themselves?
A: In Idaho, Eljen requires a complex installers license & necessary training to install.
Q: What type of maintenance does an Eljen GSF system require?
A: Minimal Maintenance, as it is passively treated through the drain field product. However, standard maintenance such as cleaning your effluent filter regularly & getting your tank(s) pumped every 3-6 years are necessary to keep the drain field functioning for a long time.
Q: Where can I buy Eljen GSF systems and components?
A: In Idaho, you can contact us at R.C. Worst & Co. to help size & estimate materials for all residential & commercial applications. If you are in another state, head over to Eljen.com and find your state's supplier today!
The bargain cave is a collection of clearance and discounted items.