Catchment tank cleaning that keeps your water safe.
A proper catchment tank cleaning means vacuuming out the sediment on the bottom, scrubbing the tank walls, and sanitizing the system. For most Puna homes we recommend a deep clean every 2–3 years — sooner if your water looks cloudy, tastes off, or pressure has dropped. It's the single best thing you can do to protect your household's water.
What a WaterWise tank cleaning includes
- Full drain & sediment vacuum — we remove the sludge and organic debris that settles on the tank floor over years.
- Wall & surface scrub — biofilm and buildup on the tank walls get scrubbed away, not just rinsed.
- Sanitizing treatment — the tank and lines are sanitized so you start fresh.
- Filter check & change — we inspect your sediment, carbon, and UV stages and swap what's due.
- Honest report — you get a clear picture of your system's health, with no pressure and no upsell.
Why Puna tanks need it more than most
Living on catchment in Hawaiian Paradise Park, Pahoa, or anywhere in Puna means your water comes straight off your roof. With 120+ inches of rain a year, plus VOG from Kīlauea and constant organic debris, sediment builds up faster here than almost anywhere on the mainland. That sediment is where bacteria thrive — and no amount of filtration fully compensates for a tank that hasn't been cleaned in five years.
A clean tank also protects the rest of your system: your filters last longer, your pump works less, and your water simply tastes better.
How it works
Free assessment
We visit, inspect your tank and filtration, and tell you honestly whether a cleaning is due.
Drain & clean
Vacuum the sediment, scrub the walls, and sanitize — usually done in a single visit.
Refill & verify
We help your system refill and confirm your water is flowing clean and clear.
What it costs
Every tank is different, so we don't quote sight-unseen. Cleaning cost depends on tank size, how much buildup is present, and access. The assessment is always free, the quote is transparent, and our monthly maintenance plan customers get priority scheduling and discounted cleanings. Call or text 808-765-7234 for a free on-site estimate.
Common questions
How often should I clean my catchment tank?
For most Puna homes, a full deep clean every 2–3 years, with filters changed every 3–6 months. If your water looks or tastes different, don't wait.
Do I lose all my water?
You'll be without stored water briefly during the cleaning. We schedule around the weather and help you refill quickly — and a clean tank fills with far better water.
Is catchment water safe after cleaning?
Yes — with a clean tank and proper multi-stage filtration (sediment, carbon, UV), catchment water is safe for drinking, cooking, and all household use.
Related services
Not sure if your tank is due?
We'll take a look and tell you straight — no charge, no pressure. Your ʻohana's water is worth it.