QUOBAS Low Pressure Water Timer 2 Pack - Ideal for Rain Barrels

In this review the QUOBAS low pressure water timer 2 pack is judged primarily as a practical, no-frills solution for gardeners using rain barrels or low-pressure drip systems; the single biggest reason to buy is reliable timed watering without requiring line pressure. Setup and programming are straightforward, the brass inlet and outlet promise a leak-proof connection to standard 3/4' NH faucets, and the timer handles 0 psi systems so it can be used with elevated barrels or gravity-fed lines.

Key Features

• Zero water pressure compatibility: Works with rain barrels and gravity systems so users can automate watering even when there is no municipal pressure.
• Flexible auto watering: Set durations from 1 minute up to 240 minutes and choose intervals from every hour to every 7 days to match plant needs.
• Instant manual watering: Start immediate watering for 1 minute to 6 hours without disturbing programmed schedules, useful for spot watering or topping up pots.
• Delay watering option: Postpone cycles for 24, 48, or 72 hours to avoid watering during rainy periods and conserve water.
• Durable brass fittings: Brass inlet and outlet fit standard U.S. 3/4' NH faucets and support up to 120 psi while maintaining a max flow around 10 gallons per minute.

Who It's For

The QUOBAS timer is best for gardeners who rely on rain barrels, small-scale drip lines, or any low-pressure irrigation where a standard electronic timer would not operate properly. It is also a good match for users who want simple programming and occasional manual override without rewiring or complex apps.

It is less suitable for large irrigation zones that require higher flow rates than the stated 10 gallons per minute or for users who need cloud connectivity and multi-zone control; professionals managing many separate zones may prefer a commercial controller.

Pros & Cons

Pros

• Compatible with 0 psi setups, making it ideal for rain barrel and gravity-fed systems.
• Wide timing range and repeat intervals allow fine control from short pulses to long soak cycles.
• Brass inlet and outlet reduce the chance of fitting failure and support common 3/4' hose connections.
• Manual watering and delay functions add useful flexibility for changing weather or spot needs.

Cons

• Some users report occasional leaking, so careful installation and checking of seals is recommended.
• Not intended as a multi-zone, app-controlled solution for large properties.

Specifications

Our Verdict

The QUOBAS low pressure water timer 2 pack is a practical and affordable pick for home gardeners who need timed irrigation from rain barrels or gravity-fed systems. Its broad timing options, sturdy brass fittings, and zero pressure compatibility make it good value for small yards, containers, and drip lines, provided you verify connections to avoid the occasional leak noted by some users.

Frequently Asked Questions

Can this timer run from a rain barrel?
Yes, the timer is designed for zero pressure systems and works with rain barrels and other gravity-fed setups.

How long can manual watering run?
Manual watering can be set from 1 minute up to 6 hours without changing the programmed schedule.

What fittings does it use?
The unit uses brass inlet and outlet fittings compatible with standard 3/4' NH faucets in the U.S.