Matched context for pump back and direct back

The page lists matched contexts for pump back and direct back.

Share - pump back	Share - direct back	Phrase
22.79%	12.31%	{pump back or direct back} fluid [perform operation]
8.58%	16.58%	tank [connection] {pump back or direct back}
5.35%	13.31%	{pump back or direct back} fuel [perform operation]
3.28%	6.98%	{pump back or direct back} oil [perform operation]