Definitions and Terms. 4

Packaging. 5

How It Works. 5

Chlorine loading. 6

Material Usage. 7

Site Setup. 8

Potable Water Instructions BoreSaver Ultra C EC

Potable Water Instructions BoreSaver Liquid EC

Definitions and Terms

Product:               When we refer to “the product” on this page we are referring to BoreSaver Ultra C.

Headworks:         The pipes at the top of the casing that joins the pump discharge pipe (rising mains) to the distribution pipe (main line).

Rising Main:        The pipe connecting the pump to the headworks.

Recycling:            Returning the discharge water to the pump inlet.

Purge Water:      Water pumped from the bore that carries away cleaner, biofilm and rusty deposits.

Biodegradable:   BoreSaver Ultra C is oxidized to carbon dioxide on reaction with iron III, or other oxidizing agents such as chlorine.

Air Oxidation:      The reaction of soluble iron  (iron II) on contact with air.

Bacterial Oxidation: The product of soluble iron  (iron II) after processing by IRB (iron related bacteria).

Cascading Bore:  Cascading water bores are those which have a significant proportion of their access slots above the pump and substantial draw down when pumped.  The water level in the bore when pumped is below the level of some or most of the slots.  This results in water cascading from the slots into the bore and being aerated in the process.

Ground Disposal: Directing the purge or discharge water on to the ground where it is absorbed.

Treatment Time: How long the product is left in the casing before it is purged.

Product Application Procedure

BoreSaver Ultra C is composed of an organic acid that removes Iron Oxide Residues. These residues build up in potable water supply pumps and boreholes. There is no need to remove the pump from the casing to clean it. BoreSaver Ultra C is safe for use with most materials including stainless steel, seals and fittings whether rubber or plastic and flexible rising mains both rigid and flexible.

Packaging

BoreSaver Ultra C is available in white poly buckets with tamper proof locking lids with a 10kg capacity. 20kg sizes are available in some counties by special request. 

How It Works

BoreSaver Ultra C is ready to use straight from the drum, no need to pre-mix or dilute prior use. It is preferable to add the BoreSaver Ultra C to the water in the bore casing either dry or with water to as a slurry.

The crystallized acid descends in the water in the bore, dissolving as it descends.  The solution produced dissolves and loosens the iron oxide residues. A greenish, turbid, frothy solution/suspension results and this must be pumped from the bore until the pumped water is completely clear. 

It is useful to pump clean water into the bore casing at the surface to flush cleaner and reaction product from above the pump down into the screen so that they can be pumped from the bore.

Chlorine loading

The purge phase of the bore treatment reduces oxalate levels in the casing to below 1ppm in 15 minutes and to vanishingly small levels in 30 minutes. This ensures there is no extra chlorine loading resulting from the use of BoreSaver Ultra C. The purge phase is considerably more efficient where clean water is pumped into the bore casing at the surface to flush cleaner and reaction products from above the pump down into the pump intake zone so that they can be pumped from the bore.

Material Usage

The amount of BoreSaver Ultra C to use is based on water volume in the bore to be treated. The degree of contamination in the pump is not directly related to the length of time the pump has been in service, rather factors such as mineral levels, dissolved carbon dioxide levels and the quantity of water pumped influence the amount of residues contained in the casing and pump.

The recommended concentration is 4.16% of BoreSaver Ultra C by weight to water in the Borehole. The maximum recommended dose rate is 7%.

For example if there is 1000L of water in the borehole you should add 41.6kg of BoreSaver Ultra C to the top of the bore casing and no more than 70kg.

The table below is designed to assist with calculating the required quantities for many different bore casing sizes.

Site Setup

1.     Pump must be offline and isolated at headworks from discharge pipeline at all times during cleanout.

2.     There is no pre-dilution required for BoreSaver Ultra C.

3.     No need to lift the pump unless the pump itself needs work or the flow has dropped to nothing.

4.     Make space or a hole in the top of the casing to allow application of BoreSaver Ultra C. This may be the same space used during recycling and purging. This could be achieved with a headworks modification, tripod, crane or hiab.

5.     Configure the headworks so that at least 5% of the purge water can be safely recycled back down the bore casing.

Dosing Stage

1.     Progressively add the recommended amount of BoreSaver Ultra C to the bore casing.

2.     Wait 30 minutes for it to settle.

3.     Recycle the bore pump for 90 minutes to clean inside of pump and rising main.

4.     Turn off pump for 12 to 48 hours.

Rinse Stage

1.     Allowing approximately 5% of the pump outflow to recycle back down the casing.  Subsequent water can be disposed of directly onto the ground.

Testing Phase If Required

1.     Continue pumping onto the ground for 2 hours. At least 5% of the water MUST be flowing back into the casing.

2.     Using the colorimetric test kit take a sample of the discharge water and test for oxalic acid residues. Samples of pumped water may also be taken for analysis by High Performance Liquid Chromatography to confirm that oxalate levels are below acceptable levels.

3.     Reconnect headwork’s and resume normal operations

Operational ‘Tips’

Placing the BoreSaver Ultra C into the Well

If the Ultra C has to be fed through a small hole then use a large funnel and run water over the Ultra C in the funnel. Alternatively use a tripod and lift the bore pump up a foot or so to allow better access to the well casing.

Treatment time

Constant mixing or agitation of the solution in the borehole such as recycling or surging dramatically speeds up the process.

Integrity of Steel Rising Mains after treatment - WARNING

NOTE: with age and certain water types, corrosion can cause holes to appear in steel/iron/galvanized casings. The same iron oxide residues causing problems in the pump may also be blocking the corrosion holes from excess leakage.

Cleaning the iron oxide residues from the bore and pump will expose any such holes and the problems they can bring. It is recommended the client examine the history of the bore, materials involved and the water chemistry involved to determine if there is a risk to cleaning the iron oxide residues from the bore.

This can also allow timely scheduling of maintenance work for sites that do suffer sever corrosion.

Bore types vary considerably both in design and construction. If unsure of the correct procedure for the use of BoreSaver Ultra C then we strongly recommend you contact your supplier for site-specific instructions.

Safe Handling Precautions

Wear proper protective equipment to prevent skin and eye contact and 

inhalation of dust. The use of rubber gloves and chemical safety glasses 

or face shield is recommended.

Disposal of Excess Product.

Reseal product container containing excess material for future use.  

If product is spilt, sweep up and place in sealed containers for disposal as regulations permit.

Wet spills to be neutralized using builders lime. 

Precautions during storage: AVOID CONTACT W/SKIN, EYES OR CLOTHING. 

DO NOT STORE WHERE EXPOSED TO MOIST CONDITIONS OR NEAR STRONG ALKALIES. 

KEEP CONTAINERS TIGHTLY CLOSED.

SPILLS OR LEAKS

Use rubber gloves and chemical safety glasses or face shield. Sweep up spilt material into plastic bags and return to manufacturer for disposal.

Avoid contact with skin, eyes or mucous membranes.

Copyright Aquabiotics Pty Ltd 2002