fitting a pump in a sand spear

Installing a

Pump in a

Sand Spear

The Problem

1. What is the best method of Installation?

2. Most Sandspear bores are 50mm ID

3. Cannot fit a submersible pump inside the spear

Here are 2 Methods to use

Solution 1

Connect the casing directly to the suction

inlet of the pump

Connect the casing directly to the suction inlet of the pump

Ensure1- All joints must be air-tight


2- Any small air leeks will stop pump from priming and pumping water


3- Rising main or casing should be similar size as the pump inlet


Negative Aspects


1- The pump has to prime itself every time, not reliable.


2- The rising main is usually a lot larger than the pump inlet


3- If a foot valve is fitted, and leeks it cannot be fixed unless the complete screen is removed.

Solution 2Recommended

Suction line fitted inside sandspear

A separate suction line from the pump inlet is installed inside the

screen and the rising main.


By having a foot valve at the bottom of the suction line the pump is fully

primed at all times


If any sand builds up in the foot valve and stops the pump from

being primed, it can easily be pulled up, cleaned and re-installed quickly


The suction line is a standard poly pipe or pvc , with a non – return

valve fitted at the bottom


Advantages

1- The pump is always primed.

2- Easy Installation and removal


Advantages

3- Non return valve easily cleaned and installed


Advantages

4- Rising main pipe diameter is more aligned with the suction side of the pump, making it more efficient.


Advantages

5- Easy access to the screen if it needs cleaning or removal.

There are always more than one solution that will work.

Over time we have found the second solution to be proven by

many clients to be the most successful.

We wish you luck with your sandspear Installation, may you

have boundless quantities of good fresh water

DEPSDelivering Economic Piping Solutions

“At Your Service”

Visit our website at deps.com.au or call us at 1300 133 000 [email protected]

mailto:[email protected]

fitting a pump in a sand spear

Business