Monitoring wells are a critical asset for hydro‑geological studies, environmental assessments and groundwater remediation—but only when they remain clean, dry and tamper‑free. Lockable well plugs provide a tight, vandal‑resistant seal at the casing top, preventing debris, surface water and unauthorised access. In this guide we dive into Ecowell’s latest and most popular plugs, show you how to choose the correct size (from ¾” to 4”), and share tips for trouble‑free installation.
Why Choose Ecowell Lockable Well Plugs?
- Watertight seal: Expanding gasket design keeps stormwater and contaminants out.
- Tamper proof: Options include padlockable wings or unique security keys.
- No‑corrosion materials: Engineering‑grade polymers mean zero rust—even in aggressive environments.
- Instrument‑ready: Integrated tethering eyes on TORQUER® models let you hang loggers, sensors or sampling pumps without extra hardware.
- Australian supply & support: Fast shipping nationwide and custom private labelling to promote your brand.
Quick fact: Ecowell stocks plugs compatible with all common PVC and stainless well casings—20 mm, 25 mm, 50 mm, 80 mm, 100 mm, 125 mm & 150 mm.
Product Line‑Up at a Glance
| Plug Model | Security Style | Available Diameters | Best For |
|---|---|---|---|
| TORQUER® Well Plug | High‑security wing‑nut + padlock | 20 mm–150 mm | Everyday monitoring wells & equipment tethering |
| TORQUER® FlushLock | Low‑profile keyed cam (no padlock) | 20 mm–100 mm | Wells in trafficable areas or flush slabs |
| “J” Plug | Oversize wing‑nut + padlock | 2″ & 4″ | Budget‑friendly routine sampling |
| “H” Cap | Unique security key (dust‑cap) | 2″ & 4″ | Sites needing key‑only access |
| EX‑CAP Vapour Extraction | Self‑sealing quick connect | ¾”–4″ | Soil‑gas and vapour monitoring |
TORQUER® Well Plug
The bright‑yellow TORQUER® is Ecowell’s flagship for a reason:
- Visual safety—high‑visibility polymer makes ID easy.
- Padlockable—standard shackle fits through the wing nut for vandal resistance.
- Dual tethering eyes inside the cap simplify deployment of data loggers.
- Zero metal parts—no galvanic corrosion or seized bolts.
- Sizes: 20 mm, 25 mm, 50 mm, 80 mm, 100 mm, 125 mm & 150 mm.
TORQUER® FlushLock
Need a plug that sits flush with a concrete slab or can’t protrude above grade? The FlushLock variant keeps the proven TORQUER® seal but swaps the wing nut for a unique security key—no metal padlock to trip over and nothing for vandals to cut.
Available in standard or vapour‑extraction versions.
“J” Plug
A long‑time industry favourite, the “J” Plug combines a large easy‑grip wing nut with a broad gasket for a reliable seal. The all‑white body proudly displays “DO NOT FILL—MONITOR WELL”, signalling that the bore is for monitoring, not filling.
Sizes: 2 inch & 4 inch.
“H” Cap
If you prefer key‑only access without padlocks, the robust “H” Cap is your answer. Operated with a proprietary key, it includes:
- Dust cap to keep rubbish out of the keyway
- Underside tether point for instruments
Sizes: 2 inch & 4 inch.
EX‑CAP Vapour Extraction Plug
When soil‑gas sampling is on the schedule, save time by swapping your standard plug for an EX‑CAP. The self‑sealing brass quick‑connect lets you hook up tubing in seconds—no need to remove the plug or break the well’s seal.
Diameters: ¾”, 1″, 2″, 3″ & 4″.
How to Select the Right Well Plug Size
- Measure the inside diameter (ID) of your casing—PVC is usually stamped on the riser.
- Check groundwater programme specs—some regulators mandate colour coding or keyed access.
- Match your equipment—ensure probes or pumps will clear the plug’s tethering eye or quick‑connect.
- Consider future sampling needs—choose EX‑CAP if vapour extraction may be required later.
Pro tip: Always keep spare gaskets and security keys on‑site to minimise downtime.
Installation & Maintenance Tips
- Lubricate the gasket lightly with silicone grease before first use.
- Tighten the wing nut until snug; over‑torquing can deform PVC risers.
- Give the plug a visual once‑over each quarterly visit for cracks, dirt or worn seals.
- Replace O‑rings at the first sign of flattening to maintain watertight integrity.
Final Thoughts
Investing in quality lockable well plugs is cheap insurance against cross‑contamination, vandalism and costly re‑sampling. Whether you need high‑security TORQUER® plugs, low‑profile FlushLocks or vapour‑ready EX‑CAPs, Ecowell has a plug range from ¾” (20 mm) to 4” (100 mm) ready to ship.
Get a Quote Today
Call 0417 987 453 or email [email protected] for pricing or submit a contact form
Frequently Asked Questions (FAQ)
Q1: Can I retrofit an EX‑CAP onto an existing TORQUER® well?
Yes—EX‑CAP plugs use the same expanding gasket mechanism, so simply remove the old plug and install the EX‑CAP of matching diameter.
Q2: Do I need special tools to install a FlushLock?
A single security key (supplied) is all that’s required—no padlock, no wrenches.
Q3: Are Ecowell plugs compliant with Australian Standard AS/NZS 5667?
Ecowell designs its plugs to exceed the sealing and material requirements typically referenced in groundwater sampling guidelines, including AS/NZS 5667.1.
Ecowell is a Perth based leading supplier of quality monitoring well equipment. Our product range includes Lockable Well Plugs, Gas Caps, Water Level Meters, Proactive 12v Pumps and general accessories. Our focus is on providing only the very best quality products along with excellent service and competitive pricing. To service the demands of our clients, Ecowell offers a fast delivery service for local clients and can provide a cost effective delivery service for interstate and international customers.
