If your lifestyle block relies on stored rainwater, a little maintenance goes a long way. Dry Nelson–Tasman summers can stretch your supply, so keeping the system in good shape matters.
Tank maintenance basics
- **Check and clean gutters and downpipes** at least twice a year. Leaf build-up reduces water quality and can block inflow.
- **Inspect the tank inlet screen** and clean it as needed. This stops debris and insects entering the tank.
- **Consider a first-flush diverter** if you do not have one. It diverts the first wash of rain (which carries the most dirt) away from the tank.
- **Check for sediment build-up** every few years. If water is discoloured or smells, the tank may need cleaning by a professional.
Pump care
- Listen for unusual noise, cycling, or pressure drops — these can indicate a failing pump or a pressure-switch problem.
- Check the pump pressure gauge periodically. If pressure is inconsistent, call a pump contractor.
- Keep the pump housing clear of vegetation and debris.
Water quality
- If you drink tank water, consider annual testing for e. coli and other contaminants.
- UV treatment systems need their lamps replaced on schedule — typically annually.
- Filters should be changed per the manufacturer schedule.
When to call a professional
- The pump has stopped or is cycling rapidly
- Water pressure has dropped noticeably
- Water is discoloured, smelly, or tastes different
- You want to increase tank capacity or add a second tank
- You need a new pump or irrigation system
Questions to ask a water/pump contractor
- Do you supply and install tanks, or install only?
- What pump brands do you service?
- Can you size a tank and pump for my household and stock needs?
- Do you handle irrigation as well as potable water?
- What is your typical response time for pump failures?