Are you planning to acquire a water collection tank so that you can reuse the water that is left after your manufacturing processes? Read on and discover some critical maintenance issues that you should consider to enable you get the best performance from the water collection tank.
It is essential for you to develop an inspection schedule for the tank. Such routine inspections will enable you to detect any problem before it deteriorates and shortens the service life of the tank or affects your industrial processes. Such inspections should focus on sanitary and structural issues. Water collection tanks can be inspected in two key ways.
Dry inspections. Dry inspections require the water collection tank to be drained of all the water. A qualified person then gets into the tank to inspect it thoroughly. Although this method is the most common, it can be wasteful if you don't have a mechanism to store the drained water for reuse after the inspection. Secondly, the inspectors have to pay special attention to safety to prevent issues such as asphyxiation. Some manufacturing processes may also have to be halted during the inspection, since water would be unavailable.
ROV inspections. Water collection tanks can also be inspected remotely using a remotely operated vehicle (ROV). An appropriate ROV is lowered into the tank without having to drain the tank. Live video feeds show the inspector everything that they need to know about the condition of the tank and its contents. This method is less disruptive because it allows your facility to remain operational. You can also interact with the inspector about what you see on the monitor where inspection data is being relayed. However, ROV inspections require highly skilled personnel to control the equipment. The disinfectants used to sterilise the inspection equipment may also affect water purity.
Always confirm that water is circulating properly in your water collection tank. Improper water circulation can result in odours and microbial issues due to stagnation. Your water treatment costs can therefore increase as you get involved in a battle to address those conditions. Avoid this problem by locating outlet and inlet piping appropriately. For example, placing the drain pipe at half the depth of the tank allows inlet water to move to the bottom of the tank, since it may be cooler than the water inside the tank. The rate at which water moves into or out of the tank can also affect circulation. For example, balancing the inflow and outflow can cause stagnation at the top of the tank if the outlet pipes are at the bottom of the tank.