CWS adjustable skim units can be applied to skim all recoverable hydrocarbons from a tank. CWS custom fabricated hinges allow the skim assembly to move with any fluctuations in the normal operating level of the tank. This allows the oil skimming process to continue uninterrupted unlike fixed skim units, which become stagnant, should emulsion levels raise or lower.

CWS has developed two distinct FRP float assemblies to be used depending on the type of oil api gravity to be recovered.