Converse of object

• dive: Simon Brooks dived the upstream sump at the end of the final passage.

• perch: In my minds eye the name Olly's perched sump ' were already written on the survey.

• bypass: One interesting prospect is the possibility of getting into a high level in Muxa, to bypass the sump.

• drain: It took a dozen cavers about eight hours to drain the sump of water.

• reach: Reached sump via 75 ' pitch down boulder slope.

Adjective modifier

• upstream: Simon Brooks dived the upstream sump at the end of the final passage.

• downstream: Alan Clegg was drowned in Lancaster Hole downstream sump.

• static: A third way on from the small chamber is a small tubular passage which emerges in a larger boulder chamber with a static sump.

• terminal: Eventually seven cavers gathered at the terminal sump to watch Rick assemble his swag.

• dry: Cars using slick tires must be fitted with a dry sump.

Modifies a noun

• lubrication: The Pegaso engine uses Aprilia's acclaimed dry sump lubrication system.

• bypass: We searched the main chamber for a possible sump bypass.

• plug: The sump plug will be missing, believed dead.

• pool: The sump pool in Wilf Taylor's Passage is usually static.

• pump: Marine Setup for sale 4ft tank with 3ft sump, sump pump, overflow b.. .

• hose: Many Hotpoint washing machines have a filter inside the sump hose which gets blocked.

Noun used with modifier

• radon: What is a radon sump in a new building?

• inlet: The water emerges from a low crawl over boulders to the left which can be followed for 60m to an inlet sump.

• terminal: The terminal sump is in the pool, which contains a muddy ledge on the right hand side.

• mud: A bug hunting trip as far as the mud sump.