Booster Pumps for JoJo Tanks & Low Water Pressure
Why You Need a Booster Pump
If your home uses a JoJo tank, rainwater tank, or gravity-fed water supply, you likely experience:
- Weak shower pressure
- Slow-filling washing machines and dishwashers
- Inconsistent pressure across multiple taps
- Geyser not heating properly due to low flow
A booster pump increases water pressure from your tank to your household — automatically.
Which Booster Pump Do You Need?
| Your Situation | Recommended Product | Price |
|---|---|---|
| Single household, 1-2 bathrooms | Domestic Booster Pump with Controller | R4,995 |
| Larger home, constant pressure needed | VSD Constant Pressure Booster Pump | R10,995 |
| Adding control to an existing pump | Automatic Pump Controller | R995 |
Standard Booster Pump vs VSD Booster — What's the Difference?
Standard Booster Pump (R4,995)
- Switches on/off at set pressure points
- Simple and reliable
- Slight pressure fluctuation when taps open/close
- Best for: Small households, budget installations
VSD Constant Pressure Booster Pump (R10,995)
- Variable speed drive adjusts motor speed to demand
- Maintains constant pressure regardless of how many taps are open
- Energy efficient — only uses power needed
- Quiet operation — no sudden motor starts
- Best for: Larger homes, multiple bathrooms, comfort-critical installations
JoJo Tank Pressure Booster Kit
Our install-ready kit includes everything you need:
JoJo Tank Pressure Booster Kit — R5,995
- Domestic booster pump
- Automatic pump controller with dry-run protection
- Pressure tank (reduces pump cycling)
- Pressure gauge and fittings
Save vs buying separately. Everything in one box.
Installation Considerations
- Inlet: Connect pump to the bottom outlet of your JoJo tank
- Dry-run protection: Essential — prevents pump damage when tank is empty
- Pressure tank: Recommended — prevents pump cycling on small water draws
- Non-return valve: Install on outlet to prevent backflow
- Electrical: Standard 220V plug for domestic models
How to Size Your Booster Pump
| Factor | What to Measure |
|---|---|
| Number of bathrooms | More bathrooms = higher flow needed |
| Distance from tank to house | Longer distance = more head pressure needed |
| Height difference | Pump must overcome vertical lift |
| Simultaneous usage | How many taps/showers running at once |
Not sure? Contact our engineering team for a free sizing recommendation.
Frequently Asked Questions
Q: Can I connect a booster pump directly to a JoJo tank?
A: Yes. Connect the pump inlet to the tank's bottom outlet fitting. Ensure the tank is elevated or has adequate head for the pump's NPSH requirements.
Q: Do I need a pressure tank?
A: Recommended. Without one, the pump starts every time you open a tap — even briefly. A pressure tank provides a buffer so the pump only runs for sustained demand.
Q: What happens when the tank runs empty?
A: Without dry-run protection, the pump can burn out. Our Automatic Pump Controller (R995) includes dry-run protection and auto-restart when water returns.
Q: Will a booster pump work with municipal water?
A: Yes, but check local regulations. Some municipalities require a break tank between mains and booster pump. Our team can advise.
Q: How much electricity does a booster pump use?
A: A standard 0.75kW domestic booster pump uses about 0.75 kWh when running. A VSD pump uses less because it adjusts speed to demand.
Monster Mechanical — engineering-backed booster pump solutions for JoJo tanks, rainwater systems, and low-pressure homes. Cape Town based, nationwide delivery.