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Demand Feeding Direct from the Bore
There are many ways of pumping water directly from your bore to the house and/or garden. Here are a couple of methods that you can follow:
Method 1 – Using a Constant Pressure System (This is by far the most efficient and reliable method)
Method 1 – This system continuously monitors your water demands and provides constant pressure throughout your home and garden reticulation system. Pump water directly and on demand from your bore / well to your house and or garden.
Turn on 1 tap or 6 taps, this system monitors and automatically adjusts the pump speed to adjust the flow accordingly and keeps the pressure constant.
All in one easy and quick package to get you pumping quickly!
|SubDrive QuickPAK is a popular system solution package, designed to make installing a constant pressure system even easier.|
Using a submersible bore pump with a pressure tank
The 3-wire single phase motor is wired to a 3 wire controller/starter box. From the box it is wired to the pressure switch which is then connected to the mains power.
|A 75 Litre pressure tank is recommended for an average size household. It will allow approx 25 litres of draw off before the pump activates.
As a basic guide you can use the following:
A 20/40 pressure switch is recommended with a 75Litre Pressure Tank. Turns on at 20 PSI and turns off at 40 PSI. It can be adjusted to turn off at 68 PSI.
A 30/50 pressure switch turns on at 30 PSI and turns off at 50 PSI. It can be adjusted to turn off at 88 PSI
The differential pressure adjustments need to be correct. There must be adequate differential pressure adjustment to prevent the pump from cycling.
When using a bore pump with a pressure tank, you don’t want the pump to run frequently as it can burn out. To prevent this from happening, you can install a 1/4″ swing check valve to the pressure tank. Drill a 3/16th hole in the check valve. When the tank needs to empty itself, the check valve will open up fully, but when the tank is being filled, water is going into the tank through a 3/16th hole and that allows for a longer run time of the motor.
The water pipe comes from the bore to the house. It has a T-piece in the line which is connected to the pressure tank, which is connected to the pressure switch.