You can easily save energy with the GARDENA Pressure Tank Unit 4000/5 eco with a power of 850 W and a maximum flow rate of 3,500 l/h. It distributes inexpensive service water, e.g. from wells or cisterns, fully automatically in the house and garden.Use water from thepumpfor flushing the toilet, for the washing machine and for gardenirrigation, for example.ThePressure Tank Unit automatically switches on and then off again depending on the water demand. The unit uses its 24-litre storage tank for smaller quantities of water, operating extremely cost-effectively and quietly. The fullyadjustable eco modecan createenergy savingsof up to 15% compared to normal operation.This is easy on your wallet and on the environment. The integrated dry-running safety device with warning lamp function ensures protection, the Pressure Tank Unit switches off automatically if the pump runs dry.If the pump should start to heat up due to a lack of water, an automatic safety switch-off function protects it from overheating.The large-volume 24-litre stainless steeltankis very convenient and will bemaintenance-freefor 5 years. The membrane does not need to be replaced during this time and it's not necessary to refill with air. As standard, the GARDENA Pressure Tank Unit is equipped with an integrated pre-filter, which protects the pump from dirt and sand, as well as a backflow preventer.It can be easily and conveniently started up, switched off, or optionally set to "manual" or "automatic" via a multi-function rotary switch. The large filling opening and the bleed valve support problem-free commissioning. Self-priming is optimised by the automatic check valve adjustment. In addition, athermal overload switchensures that the maintenance-free capacitor motor continues to operate trouble-free. On the pressure side, you can use three connections individually and as required, and operate several units simultaneously. If frost threatens you can drain the pump with the help of thedrain screw. The Pressure Tank Unit impresses with its intelligent technology, high-quality materials and compact design. Themanometerand pressure switch are integrated in a space-saving and clearly arranged manner. Salt water, aggressive and highly flammable substances and food must not be pumped.Spring-mounted rubber feet are available as an accessory from the GARDENA Service to make the running of the Pressure Tank Unit even quieter. After simple online registration, GARDENA offers an extended warranty of five years on the German-engineered pump. Feel the power of GARDENA pumps with more than 40 years of experience in drainage, irrigation, domestic use.Max. pressure / delivery head 4.5 bar/45 mMax. delivery capacity 3,500 l/h