3.3 Batch and continuous lubricating systems The feed pipe should preferably be connected to a supply of hot, fresh water This arrangement facilitates e55 the priming of the purifier bowl with water. and enables some of the dirt to be occasionally washed out from the bow3.3 Batch and continuous lubricating systems • The feed pipe should preferably be connected to a supply of hot, fresh water. • This arrangement facilitates the priming of the purifier bowl with water, and enables some of the dirt to be occasionally washed out from the bowl