The chemical reaction for rusting begins by oxidation, which is when iron loses two of its electrons to the oxygen found in the tank. When you place a Magnesium or aluminum rod Into water, this also occurs, just much faster. The bonds between the molecules of Magnesium and aluminum give up their electrons faster than the bonds in steel or iron. Thus, when you place an aluminum or Magnesium anode rod Into an iron or steel tank of water, the oxygen in the equation takes the two electrons of the anode rod instead of the tank, as they gave them up quicker. This will rust the anode rod, but not the tank itself
Delivery is free on all orders. We deliver all around the UK using DHL and Parcelforce. Standard delivery will take 1-5 working days to reach you. However, once the order is received, we will contact you to give you a more precise timescale. Usually, we will deliver the next day, subject to the date and time of when the order is received and the product.
Orders placed during the weekend will be processed the following Monday for delivery the following day. In the case of Bank Holidays, your order will be processed the next working day and delivered the following working day.
Remote areas: For orders to some addresses, especially in the Highlands of Scotland and Offshore, next day delivery options are not available, and delivery can take several days. Saturday delivery is unavailable for these areas.