Performing complete oil change outs on transformers seems like it may be the solution, however much of the oxidized/contaminated oil can still reside in the system therefore transferring the contamination into the virgin oil. Our portable vacuum dehydration systems for sale are designed to remove acids, dirt/sludge, and gases from transformer oils such as Hydrogen, Methane, Ethane, etc. from reservoirs. Our systems also remove high water/moisture levels to bring the fluid back to optimal performance specifications.