I think like bill but also can add that:
- The deposit have you do is to accumulate more air that the price is more profitable because the engine is more time I stopped running and is prone to overheating immense.
- Each start the compressor does not charge vacuum pressure to start because when you have a lead tank discharge valve to empty the compressor outlet to tank this makes the engine last between 3000 and 4000 outbursts that not having more deposit, (at least that is mandatory in Spain).
- The engine works as far fewer hours without the deposit, this makes everything suffer less wear.
- Remove the turbulence of the release of compressed air from the chamber, not depression is taken into the charge air in the chamber and the potential burden of moisture in the air suspension need not to stay after the filter is removed all this makes the air flow will not be constant.