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Rainwater Tank and Pump Services Melbourne
Rainwater tank or pump playing up? Plumb Melbourne installs, connects and repairs rainwater tanks and pumps across south-east Melbourne.
A rainwater tank can cut mains water use and give your garden, laundry, and toilets a reliable supply, but only if the plumbing and pump are set up correctly. Poor connections, the wrong pump, or blocked inlets lead to low pressure, constant pump cycling, leaks, and overflowing tanks.
Plumb Melbourne installs and connects rainwater tanks, including downpipe inlets, overflow to stormwater, and supply lines to the garden, laundry, and toilets. We repair and replace pumps, diagnose pressure and priming problems, and fix leaking fittings, valves, and pipework.
Where a mains water top-up is connected, we make sure the connection meets the plumbing standards that apply, including backflow protection. We service Glen Iris, Camberwell, Malvern, Toorak, Caulfield, Carnegie, Bentleigh, Brighton and surrounding inner east and south-east Melbourne suburbs.
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When you need to call a plumber
Pump turning on and off constantly
We pressure test the system and repair the leaks, valves, or pressure switches causing it.
Low pressure from tank-fed taps or toilets
We check the pump, filters, and pipework and restore proper flow.
Tank overflowing or inlet blocked
We clear and repair inlets and make sure the overflow runs to the stormwater system.
New tank needing connection to the house or garden
We install and connect supply lines to suit how you want to use the water.
Mains top-up needed during dry periods
We install the top-up connection to the plumbing standards that apply, including backflow protection.
Why does my rainwater tank pump keep turning on and off?
Frequent cycling usually means the pump is losing pressure or can't hold it. Common causes include a small leak in the pipework, a faulty non-return valve, a worn pressure switch or pressure tank, an air leak on the suction side, or a partly blocked inlet filter. Left alone, constant cycling shortens the life of the pump. A plumber can pressure test the line, check the valves and fittings, and repair or replace the faulty part, or advise if the pump is at the end of its life.
Quality Work, No Surprises
Up-front pricing and top-quality products, no hidden fees.
Fast, Same-Day Service
We arrive on time and fix it right the first time.
Renovation & Maintenance Specialists
From leaking taps to full bathroom renovations.
Get to Know Us
At Plumb Melbourne, we do more than fix taps and toilets — we deliver reliable, same-day plumbing with upfront pricing and no surprises. Our licensed team specialises in maintenance, renovations, hot water, and hydronic heating, using only quality products to get it right the first time. Local, professional, and trusted — we’re here when you need us most.