Wash in method for installing a sand spear

Drilling methods and Installation of a sand spear

Wash In Method

Drilling a Sand Spear

View of typical Soil

Formation

& Sand

Drilling Through Top soil

Depending on where you are drilling you may

or not have top soil above your sand& Sand

Drilling Through Top soil

First drill a hole by auger or a shovel

through the top soil into the sand& Sand


Machine Auger


Hand Auger


Hand Auger


Auger Hole


Remove Auger


Insert casing


Insert Casing in hole drilled or dug through into the

sand


This is to ensure no dirt or rocks can enter your hole and insertion of

sand spear is much easier


Seal Casing

Drilling a Sand Spear Fill in around casing once

in place with dirt or cement in place so casing

is more secured.

Drilling a Sand Spear Fill in around casing once

in place with dirt or cement in place so casing

is more secured.

Wash in Method

Or Jetting Installation

Components Needed

Wash in Method or Jetting

1 - Sand Spear2- Casing3- Water pressure supply


1 - Sand Spear2- Casing3- Water pressure supply


Your Sand Spear will need to be a wash in spear, this has facilities to connect a water supply to it


If this does not have a pipe connection, you could tape a hose to the outside of your standard sand spear


This pictured here is mainly used for temporary installation when water is close to the surface


Connect water here

This one is the most common type.1-pipe connection 2- Hole, creates water jet3-Non return valve


Plus it will have a non return system such as a small ball, so that when the water supply is disconnected the valve will stop sand from entering the screen


Wash In Valve


Procedures

1- Jetting (washed)can start from the surface, it is recommended that you auger to the

water table


Jetting or Wash


This is used so that water under pressure coming out of the bottom of the screen

is used to push sand away from the screen, allowing the spear point to be

pushed in by hand.

Water Supply


The water pressure delivered to the front of the screen needs to be of a

pressure that can move the sand enough to allow the screen to be

pushed by hand.

Water Supply


You Can use the following. Normal tap pressure. House hold pump. Pressure pump. Pressure washer

Water Supply


Pressure needed is particular to the sand formation that you have under the ground, some have fine sands, some are course heavy sand that needs a greater pressure


Connect water pressure to screen

and turn on


Push spear into the sand until you have the spear

800mm below water level


Unscrew water supply from sand spear


You can now install your pump.


Thank you for taking the time to look at the information we have created for you,We hope this will be of assistance to solving your piping, drainage , cleaning and drilling challenges.

If you have any more questionsPlease feel free to contact myself or one of our team

Bore Casing & Screens Pipes & Components Environmental Drilling Water Treatment Safety Products Sand Spears Pumps


• For more Information • go to www.deps.com.au

• 0r contact us on• 1300 133 000• 0457 819 610

• [email protected] Casing & Screens Pipes & Components Environmental Drilling Water Treatment Safety Products Sand Spears Pumps



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ThreadingTurningWeldingSlitting

DesigningWater

TreatmentPipe

Drilling products

Pipe Fittings



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Wash in method for installing a sand spear

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