By Sarah Chen · environmental engineer · water, waste and everything that flows downhill
“After three failed attempts, my 40-metre well finally yielded 200 litres an hour, but the sand filter I installed saved the pump from immediate destruction.”
— Sarah. Every litre accounted for.
ArticlesCalculatorsSite PlannerShopPutting down a bore isn't the hard part; it's the planning, licensing, and equipment choices that decide whether you've got reliable water or a dry hole. I've drilled, tested, and troubleshot enough bores across regional Australia to know the shortcuts that cost you. What follows covers the groundwork that saves money and keeps you on the right side of state regulations.
By Sarah Chen · environmental engineer · water, waste and everything that flows downhill
“After three failed attempts, my 40-metre well finally yielded 200 litres an hour, but the sand filter I installed saved the pump from immediate destruction.”
Drilling the bore is the easy bit. Keeping water flowing reliably for the long term means working through your state's groundwater rules, matching the pump to the actual yield, and protecting the headworks from surface contamination. I've watched too many properties end up with a perfectly good hole ruined by a bad seal, a wrongly sized pump, or paperwork that wasn't sorted before the drill rig showed up. Sort those three things out and the rest is straightforward.
Not all drilling is equal. Your geology and budget dictate the method. Here's the straight talk:
| Method | Best For | Cost (AUD) | Time | Pros & Cons |
|---|---|---|---|---|
| Hand Auger | Shallow, sandy soils (under 15m) | $1,500 - $3,500 | 1-3 days | Low cost, no heavy machinery. Only works in soft ground. Won't hit deep aquifers. |
| Rotary Drilling | Hard rock, deep aquifers (30m+) | $8,000 - $25,000 | 3-7 days | Most reliable for deep water. High cost, needs heavy equipment. Best for serious off-grid setups. |
| Jetting | Shallow, sandy/loamy soils (15-30m) | $3,000 - $7,000 | 2-5 days | Quick, cheaper than rotary. Limited depth. Risk of collapsing bore walls in unstable ground. |
Forget generic advice. Water rules are state-based. Here's the reality check:
| State/Territory | Licensing Needed? | Key Rules | Where to Apply |
|---|---|---|---|
| New South Wales | Yes (for >50kL/year) | Requires approval from NSW DPI. No drilling without consent. AS/NZS 4859:2019 for bore construction. | NSW Water |
| Victoria | Yes (all bores) | Must register with VicWater. Minimum 10m separation from septic tanks. AS 4859:2019 mandatory. | VIC Water |
| Queensland | Yes (for >10kL/year) | Water licence from DERM. No drilling without approval. Check local catchment rules. | Queensland Water |
| Western Australia | Yes (all bores) | Requires Water Access Licence from DWA. Mandatory casing to 3m depth. | WA Water |
| South Australia | Yes (all bores) | Requires Water Licence from SA Water. Must follow AS 4859:2019. | SA Water |
Important: Always check with your local council first. Some areas (like parts of QLD and WA) have strict moratoriums on new bores during droughts.
Choosing the wrong pump means wasted money and headaches. Here's the breakdown:
| Pump Type | Best For | Cost (AUD) | Pros | Cons |
|---|---|---|---|---|
| Submersible | Deep bores (15m+), high yield, reliable | $800 - $2,500 | Quiet, no priming needed, long life (5-10 years) | Harder to service, needs full bore access |
| Surface (Jet/Solar) | Shallow bores (under 10m), solar setups | $300 - $1,200 | Easy to fix, works with solar, low upfront cost | Prone to air locks, limited depth, needs regular maintenance |
Top pick for off-grid: SunSun Submersible Pump (12V/24V) – Australian-made, handles 10m+ depth, solar compatible. $1,299 AUD.
Most Aussie bores need filtration. Hard water, iron, or sediment will kill your system fast. Here's what to use:
| Water Issue | Recommended Filter | Cost (AUD) | Replacement |
|---|---|---|---|
| Sediment (mud, sand) | 5-50 micron sediment filter | $50 - $150 | Every 3-6 months |
| Iron/Manganese | Iron filter (e.g., KDF media) | $200 - $500 | Every 1-2 years | Hard Water (calcium) | Scale inhibitor or softener | $300 - $800 | Every 6-12 months |
| General Contaminants | Carbon + sediment combo | $100 - $300 | Every 3-6 months |
Real cost: Basic filtration system (sediment + carbon) = $250-$400 AUD. Non-negotiable for health and pump longevity.
Testing is cheap insurance. You'll waste money on filters or pumps if you don't know your water's issues. Steps:
Don't assume your bore is a fountain. Yield depends on aquifer, not just depth. Calculate:
Here's the full picture for a standard off-grid bore (15m depth, 2L/min yield):
| Item | Cost (AUD) |
|---|---|
| Drilling (Jetting method) | $4,500 |
| Submersible pump (12V) | $1,299 |
| Filtration system (sediment + carbon) | $350 |
| Water testing | $150 |
| Installation (pump, pipes) | $800 |
| Total (AUD) | $7,099 |
Tip: Rotary drilling costs 2-3x more but gives 2-3x more yield. For off-grid, it's worth the investment.
Most bore failures happen because of neglect. Do this monthly:
Every 2 years: Service pump, check casing for corrosion.
Essential tool: Water Test Kit (E. coli + pH) – $45 AUD. Test water yourself before sending to lab.
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Worth a watch: Drilling a Bore Well in Australia | Start to Finish + Cost Summary · Off Grid City Couple
Yes, and don't assume one permit covers you for a second attempt. When my first bore failed, I found out the hard way that drilling a replacement needed a fresh state permit. Sort the licensing before the driller shows up, because it's one of the things that decides whether you've actually got reliable water.
Get the water tested before you commit to a full bore, not after the pump's already in. The test tells you what's in the water and shapes the filtration and pump choices you'll need. Skip it and you can end up with gear that can't handle what comes out of the ground, which is what the spin-down pre-filter section is all about.
On my place, I run a submersible down the bore and a surface pump at the tank, and that split setup is what actually worked. The right answer depends on your depth, yield, and how far the water's got to travel, so don't just copy what your neighbour did. The article walks through what each setup did on my property, including the trade-offs.
There's a clear point where DIY runs out of puff and a licensed driller needs to come in, and it's usually once the first bore's failed or the licensing's got messy. I cover exactly where that handover happened on my Queensland block. Trying to save a bad first bore with more DIY almost always costs more in the end.
While many off-grid projects are achievable as DIY, certain situations require licensed professionals:
Always check local regulations and obtain necessary permits before commencing work.