It is increasingly popular to pump water from the tank rather than relying on gravitational flow. Manufacturers can supply a range of pumps that are able to meet your needs providing anything from basic flow to supporting a fully automated garden irrigation system. Rainwater pumps should be selected with three things in mind:
It's best to know the pressure and flow rates necessary to run your desired applications before you purchase a pump. For example a shower and lawn sprinkler requires 15 litres per minute (lpm) at 140kPa. However, if you're running an irrigation system, you might need 60lpm at 400kPa. Work backwards from the number of appliances that you want to run at the same time, combine them together, and this will give you the required flow rate. The relevant pressure required is determined by the pipe size used and the length of the pipe. If you stick to 25mm or larger, you won't run into problems around the home and, as a general rule, multistage pumps deliver the highest pressures. A professional will be able to offer sound advice once you have a clear idea of your application.Reliability can be determined by several factors such as the suitability of the pump for its application, the materials of construction, the quality of the installation, water quality, and pump and controller quality.The amount of noise generated by a pump is, of course, dependant on its type. Residential noise, including that of your pump, is governed by EPA guidelines that set prohibited times and maximum noise levels as determined by your proximity to your neighbours.