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201:. Pumping the water away requires the inward flow of water into the sump to be less than the rate at which the pump empties it, as well as a suitable place to collect the emptied water. Upstream sumps have been successfully emptied using hoses to siphon water out of them, such as at the
141:, is a passage in a cave that is submerged under water. A sump may be static, with no inward or outward flow, or active, with continuous through-flow. Static sumps may also be connected underwater to active stream passage. When short in length, a sump may be called a
181:). This is known as "free diving" and can only be attempted if the sump is known to be short and not technically difficult (e.g. constricted or requiring navigation). Longer and more technically difficult sumps can only be passed by
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Short sumps may be passed simply by holding one's breath while ducking through the submerged section (for example, Sump 1 in
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209:, and the emptied sumps revealed virgin passage behind them. During a rescue from beyond a downstream sump at
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Sumps often block access to "dry" passage beyond them. Diagram B shows a "perched" sump, which could be
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done to the fragile cave environment usually rules out the use of such methods.
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Culver, David C.; Pipan, Tanja; White, William B., eds. (10 May 2019).
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When practical, a sump can also be drained using buckets, pumps or
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during exploration in 2005. The water was sent deeper into the
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constructed a few metres above the flooded passage.
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224:or other forms of force to empty sumps, but the
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185:(as happened repeatedly in the exploration of
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213:in 2002, water was pumped upstream into a
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160:flow, or the relationship with the local
152:factors specific to a cave – such as the
109:Learn how and when to remove this message
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220:Some manuals also mention the use of
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47:adding citations to reliable sources
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342:Glossary of caving and speleology
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34:needs additional citations for
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784:List of UK caving fatalities
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129:to lower the water level.
760:Cave of Forgotten Dreams
753:Diving into the Unknown
168:Exploration past a sump
799:Tham Luang cave rescue
794:Riesending cave rescue
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767:The Underground Eiger
261:Encyclopedia of Caves
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264:. Elsevier Science.
43:improve this article
789:Alpazat cave rescue
434:Types and formation
716:Cave-dwelling Jews
463:Estavelle/Inversac
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361:Cave conservation
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60: –
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54:Find sources:
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32:This article
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711:Cave dweller
625:Cave popcorn
564:Underground
554:
483:Karst spring
473:Glacier cave
275:. Retrieved
260:
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211:Sarkhos Cave
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187:Krubera Cave
176:
150:hydrological
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41:Please help
36:verification
33:
590:Speleothems
503:Exploration
403:Troglofauna
371:Cave survey
349:Main topics
296:Sump Rescue
183:cave diving
162:water table
827:Categories
726:Kome Caves
690:Stalagnate
685:Stalagmite
680:Stalactite
670:Soda straw
660:Shelfstone
620:Cave pearl
595:Speleogens
560:Talus cave
493:Ley tunnel
420:Speleology
398:Stygofauna
245:References
222:explosives
99:April 2023
69:newspapers
838:Hydrology
777:Incidents
704:Dwellings
645:Helictite
640:Frostwork
635:Flowstone
605:Anthodite
578:Waterfall
550:Suffosion
535:Show cave
520:Salt cave
488:Lava cave
436:processes
386:Equipment
812:Category
665:Snottite
655:Rimstone
650:Moonmilk
540:Sinkhole
525:Sea cave
510:Pit cave
478:Ice cave
277:18 April
232:See also
207:sinkhole
193:Draining
154:sea tide
127:siphoned
736:Yaodong
610:Boxwork
453:Cave-in
199:siphons
83:scholar
833:Caving
545:Spring
458:Cenote
381:Diving
376:Caving
334:topics
268:
173:Diving
139:siphon
85:
78:
71:
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56:
573:River
515:Ponor
468:Foiba
410:Karst
393:Fauna
158:river
137:, or
90:JSTOR
76:books
593:and
568:Lake
555:Sump
498:Mine
332:Cave
279:2023
266:ISBN
143:duck
135:sump
62:news
695:Vug
215:dam
189:).
45:by
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133:A
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106:(
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97:(
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39:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
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