Recreational & Residential


Tank Treatment


Tank Treatment


System Treatment


Sanitiser / General


Removes diesel odour & taste from contaminated water tanks.

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Treats 80-100L

water tanks


Accidentally putting diesel in your water tank can be very costly and a real headache.

Biomagic 'Diesel in Water' can effectively remove diesel odour and taste from diesel contaminated water tanks, saving you time and money. 

For treating 80L to 100L tanks

NOTE: If you have put diesel in your main water tank but have not pumped diesel through the system in any way, disconnect the tank outlet if possible and restrict cleaning to the tank only.

1. Drain / flush out water tank and if required, hose and or pump out as much of the contaminated water from the system as possible. Don’t forget the hot water system.

2. Fill the main water tank with a mixture of hot water, a non-toxic detergent such as washing up liquid & about 150ml of methylated spirits.

3. If required, flush entire system until you empty the tank.


4. Add 500ml of product to the water tank, completely fill the tank with water and leave overnight.


5. If required, flush entire system until you empty the tank.


6. There should be no diesel taste or odour. If diesel residue still remains repeat from step 3.

It is advised that after treatment you have the water quality of your system tested by an appropriate lab.