Vision Solar Systems - 100 L Gravity Fed Type
Copyright © 2013 - 2016 Enervision. All Rights Reserved.
Issue 2.0 Mar 2013
22
Inspection for leaks
Inspect the cold water pipework from point of supply to the geyser for leaks. Look for wet
marks below the pipe or markings on the pipe for indication of leaks.
Inspect the pipework on the tank and the tank itself for signs of leaking pipes.
Inspect the hot water pipe to the point of delivery for signs of leaks.
Have any leaks repaired by a competent plumber.
Note: Overflow pipes may show signs of water flow. This is normal but there should be no
continuous flow from these pipes.
Testing the ball valve operation
Check that the main tank is full of water.
If not, check the operation of the ball valve. Ensure that the ball is free to move and release water
into the reservoir tank and that there is free flow between the reservoir and main tank.
Draw a 20 litre bucket full of water from the drain valve. Ensure that the ball valve opens to
refill the system and stops once the tank water is replenished.
If not, check the operation of the ball valve and ensure that the ball is free to move and release
water into the reservoir tank and that there is free flow between the reservoir and main tank.
Note: Air inside the tank can speed up the corrosion inside the tank.
Checking all vent and overflow pipes are not blocked
Check for insects that may build nests in the vent or overflow pipes.
Clean and treat with an insecticide.
Check that there are no blockages in the vent or overflow pipes.
Clean out blockages and treat as required to prevent re-occurrence.
Note: Any blockage can result in the main tank being subjected to supply pressure. This will
adversely affect the system and can result in burst seals or tubes on the system or even structural
damage.
Seals on the outer cladding
Check the rubber seals on all the pipe entry points on the outer cladding to ensure that they are
still intact and to prevent the ingress of water into the insulation material, pay particular
attention to the points on top of the tank.
Seal if necessary to prevent ingress of water.
Note: Water in the insulation material can increase the thermal losses from the tank and can speed
up the corrosion on the outside of the tank.
Indication of rust or corrosion on the tank or frame
Check the outside cladding of the tank for signs of corrosion.
Check the frame for signs of corrosion.
Remove corrosion, treat the metal primer and then repaint the affected areas.
Electrical back-up heating circuits
Check the timer is set to the correct periods of operation.
Check the isolator is in the on position.
Check the supply voltage to the back-up circuit.
Bypass or override the timer circuit.
