[Mike K]

Is it this device https://www.hnw.com.au/product-range...-tank-heating/

If you have a large item to clean in your caustic solution , or some other chemical , Citric acid or whatever. I recently discovered the larger dairy farmers use 1000 liter tubs, the tubs contain cleaning agents for the farm. I got one for $40 . Not sure if these are available world wide but these things are usually a standard item https://www.ebay.com.au/i/2032213923...CABEgKRkfD_BwE