Reader Comments

Energy Cube System

by Jerome Princy (2020-04-11)

Typical "direct feed" rainwater Energy Cube System Review systems have a pressure sensitive pump which maintains pressure on the rainwater pipes to toilets, washing machines and any non-drinking-water tap. The pump switches itself on every time an appliance is used. Furthermore, as pressure in the pipe run drops, the pump will start up again even when there has been no demand on the water supply. The pump, therefore, "hunts", i.e. it automatically turns itself off and on as needed throughout the day and night. So because the pump starting up draws a peak surge in power, electricity use is unnecessarily high. This effort also accelerates the wear on the pump bearings, seals and motor. Using a gravity feed system in conjunction with a specially-designed header tank solves this issue. Energy-saving rainwater systems use a smart rainwater header tank. The main storage tank pump feeds rainwater up to the header tank. This way the appliances are fed by gravity. In smart header tanks, such as the Rain Director, the electronic sensor will start the pump only when the tank is completely empty. A 91 litre header tank will last for 12 toilet flushes, and a clothes washing machine cycle, i.e. more or less an average family's daily use. It also takes just under two minutes for the pump to refill the header tank. The pump would only cycle one time per day in your average home.About ten times less power will be used. Presuming one washing machine use and 12 WC flushes each day, with a direct-supply pump system energy use is @ 1.5 kilowatt-hours (the same as using a 1000 watt electric fire for an hour and a half each day). With a smart header tank system, it is only 0.15 kwh per day. So with 1000 kwh costing around 110 GBP, the direct-feed system costs 59 GBP per annum in electricity, and the smart header tank system 6 GBP.

What is Energy Cube System?