When is a water computer that works without pressure?our recommendation
Gardena smart Water Control: intelligent irrigation computer controllable with smart app, frost warning system, proven valve technology, ideally suited for micro-drip system or sprinkler system (19031-20)135.00 EUR To the product
A pressureless functioning irrigation computer is always required when it is to be connected to a pressureless system - such as a rain barrel. Most irrigation computers, however, require a minimum pressure of 0.5 bar, which the water that is directed from the water barrel towards the lawn and / or bed normally does not reach. In this sense, it is not that easy to find a version that meets the decisive purchase criterion.
- Water computer with moisture sensor test 2020: the best models in comparison
- Irrigation computer with rain sensor test 2020: the best models in comparison
- Water computer test 2020: the best models in comparison
When comparing different watering computers, always pay attention to the pressure information. If the manufacturer already announces “Suitable for rain barrels” (or similar) in its product description, then you can assume that it is actually a model that works without pressure.
Basically, a pressureless watering computer has the same properties, advantages and disadvantages as a conventional watering computer with pressure. Details can be found in our comprehensive guide on the subject.
Purchase criteriaour recommendation
Aqualin watering clock with ball valve automatic watering computer irrigation system water timer for garden yard, color blue27.99 EUR To the product
When buying a pressureless watering computer, the following criteria must be taken into account (apart from the information on pressure mentioned several times):
- Thread of the connections
- Adjustability of irrigation
- Control / display
- Battery level indicator
Thread of the connections
Make sure to check whether the connections of the pressureless irrigation computer really match your hoses. To do this, you should know the thread diameter of the latter and compare it with the respective manufacturer's information.
Adjustability of irrigation
Can the irrigation be adjusted flexibly? The more programming options you have in terms of watering cycles, duration and frequency, the better it is. But: the main thing is that the options match what you need or imagine.
Control / displayour recommendation
Royal Gardineer irrigation computer: digital irrigation computer BWC-200 with 2 connections (automatic irrigation)32.95 EUR To the product
It is very advantageous if the pressureless watering computer has a large display. For the models that interest you, be sure to read other customer reviews to see how simple (or complicated) it is to control it. Important values must be visible at first glance. In addition, you should be able to make your settings with little effort (with a few “clicks”).
Battery level indicator
Does the pressureless watering computer also have a battery charge indicator? An essential feature to supply the device with fresh energy in good time (otherwise it might unexpectedly give up the ghost and interrupt the watering) ...
frequently asked Questions
Why do I need a watering computer that works without pressure?
If you have a rain barrel in which you want to collect water that is then used to automatically irrigate the green areas in your garden, you need an irrigation computer that does not require pressure.
How do I use an irrigation computer that works without pressure on a rain barrel?
You have to connect both the rain barrel and the watering computer with a hose so that the collected rainwater can flow from the barrel via a hose towards the lawn or bed - according to your settings.
How much does a water computer cost without pressure?
Water computers that work without pressure cost just as much as normal versions with pressure. Depending on the quality and functionality, you pay around 30 euros upwards.