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'Rum'-pumped crab icon
Killing 'rum'-pumped crabs

By having the surgeons trapped in the other room, you can easily deal with the crabs.

'Rum'-pumped crabs are mutated crustaceans found in the 'Rum'geon on Braindeath Island. They have been injected by Captain Donnie's general malpractitioners in order to create an army. They are the only monsters that drop the brackish blade.

In order to access the dungeon, the quest A Clockwork Syringe needs to be partially completed and the player must have a fishbowl helmet and diving apparatus equipped, otherwise they will not be allowed to enter.

'Rum'-pumped crabs use only melee with a maximum hit of around 240. They will constantly be considered aggressive towards anyone within the 'Rum'geon. They will take increased damage from the brackish blade that they drop, as well as the brine sabre.

DropsEdit

CharmsEdit

No charmGold charmGreen charmCrimson charmBlue charm
89–91%2–3%1–2%2–3%4–5%
Represents a 90% confidence range based on a sample of 2,401 kills.
1 charm is dropped at a time.
Add data to the log (requires JavaScript).

Main dropEdit

Item Quantity Rarity GE price
Rune clawRune claw1Uncommon6,301
Brackish bladeBrackish blade1Rare116,388
Fishing potion (4)Fishing potion (4)(noted)Common2,050
Super attack (1)Super attack (1)1Common1,056
Super strength (1)Super strength (1)1Common2,137
Super defence (1)Super defence (1)1Uncommon1,278
Super ranging potion (2)Super ranging potion (2)1Rare6,950
Grimy guamGrimy guam1Common347
Grimy marrentillGrimy marrentill1Common397
Grimy tarrominGrimy tarromin1Common29
Grimy harralanderGrimy harralander1Common91
Grimy ranarrGrimy ranarr1Common2,470
Grimy iritGrimy irit1Common3,159
Grimy kwuarmGrimy kwuarm1Uncommon5,088
Grimy avantoeGrimy avantoe1Uncommon1,306
Grimy cadantineGrimy cadantine1Uncommon2,685
Grimy lantadymeGrimy lantadyme1Uncommon2,788
Grimy dwarf weedGrimy dwarf weed1Uncommon1,917
Potato seed 5Potato seed1–3Common11–33
Onion seed 5Onion seed1–3Common9–27
Cabbage seed 5Cabbage seed1–3Common9–27
Tomato seed 5Tomato seed1–3Common4–12
Strawberry seed 5Strawberry seed1–3Common55–165
Watermelon seed 5Watermelon seed1–3Uncommon970–2,910
Evil turnip seed 5Evil turnip seed1–4Uncommon24–96
Sweetcorn seed 5Sweetcorn seed1–3Uncommon5–15
Morchella mushroom spore 5Morchella mushroom spore2Uncommon424
Fellstalk seed 5Fellstalk seed1Rare494
Coins 1000Coins342–1,671Common342–1,671
LobsterLobster1Common92
Raw lobsterRaw lobster1–3Common226–678
Gold oreGold ore(noted)Common376
Fire talismanFire talisman1Rare1,653
Rare drop tableRare drop table1RareNot sold

TertiaryEdit

Item Quantity Rarity GE price
Spirit sapphireSpirit sapphire1RareNot sold
Spirit emeraldSpirit emerald1RareNot sold
Spirit rubySpirit ruby1RareNot sold
Starved ancient effigyStarved ancient effigy1Very rareNot sold

Rare drop tableEdit

This monster has access to the rare drop table.
Luck-enhancing items such as a ring of wealth or luck of the dwarves are not required to access the table.
Show/hide rare drop table
Item Quantity Rarity GE price
Coins 250Coins250–500Common250–500
Uncut sapphireUncut sapphire1Common850
Uncut emeraldUncut emerald1Common1,962
Uncut rubyUncut ruby1Common1,680
Uncut diamondUncut diamond1Common3,499
Uncut diamondUncut diamond45–55 (noted)Rare157,455–192,445
Loop half of a keyLoop half of a key1Common18,563
Tooth half of a keyTooth half of a key1Common22,867
Uncut dragonstoneUncut dragonstone1Uncommon11,530
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare518,850–634,150
Dragon longswordDragon longsword1Common57,501
Dragon spearDragon spear1Rare37,333
BattlestaffBattlestaff180–220 (noted)Rare1,094,940–1,338,260
Rune javelinRune javelin5Rare900
Rune platebodyRune platebody1Uncommon37,726
Rune platebodyRune platebody15–25 (noted)Rare565,890–943,150
Shield left halfShield left half1Rare64,182
Dragon helmDragon helm1Uncommon58,790
Rune arrowheads 5Rune arrowheads113–137Common29,945–36,305
Onyx bolts 5Onyx bolts135–165Very rare1,068,390–1,305,810
Chaos talismanChaos talisman1Rare1,666
Nature talismanNature talisman1Rare1,126
Water talismanWater talisman65–82 (noted)Rare426,725–538,330
Earth talismanEarth talisman65–82 (noted)Rare123,825–156,210
Fire talismanFire talisman25–35 (noted)Rare41,325–57,855
Raw lobsterRaw lobster135–165 (noted)Common30,510–37,290
Raw sharkRaw shark225–275 (noted)Uncommon258,975–316,525
Big bonesBig bones68–82 (noted)Uncommon13,192–15,908
Dragon bonesDragon bones180–220 (noted)Rare310,320–379,280
CoalCoal200–1,100 (noted)Uncommon26,600–146,300
Gold oreGold ore90–110 (noted)Common16,920–20,680
Adamantite oreAdamantite ore180–220 (noted)Uncommon225,000–275,000
Adamant barAdamant bar14–16 (noted)Common39,312–44,928
Adamant barAdamant bar135–165 (noted)Rare379,080–463,320
Runite oreRunite ore90–110 (noted)Rare1,048,230–1,281,170
Rune barRune bar(noted)Common41,379
Rune barRune bar45–55 (noted)Rare620,685–758,615
Grimy torstolGrimy torstol90–110 (noted)Uncommon313,740–383,460
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon167,850–205,150
Super restore (4)Super restore (4)45–55 (noted)Uncommon188,190–230,010
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon177,210–216,590
Lantadyme seed 5Lantadyme seed14–16Uncommon10,066–11,504
Dwarf weed seed 5Dwarf weed seed14–16Uncommon9,912–11,328
Magic seed 5Magic seed4Uncommon403,312
Palm tree seed 5Palm tree seed10Rare1,064,760
FlaxFlax450–550 (noted)Common16,650–20,350
Molten glassMolten glass45–55 (noted)Common12,375–15,125
Soft claySoft clay450–550 (noted)Uncommon202,050–246,950
Yew logsYew logs68–82 (noted)Uncommon12,852–15,498
Yew logsYew logs675–825 (noted)Rare127,575–155,925
Teak plankTeak plank45–55 (noted)Uncommon32,400–39,600
Mahogany plankMahogany plank270–330 (noted)Rare364,230–445,170
Blurberry specialBlurberry special1Uncommon3,652
Vecna skullVecna skull1Very rare*295,839
Hazelmere's signet ringHazelmere's signet ring1Very rare*1,885,212,297
Brawling gloves (Melee)Brawling gloves (Melee)1Very rareNot sold
Brawling gloves (Magic)Brawling gloves (Magic)1Very rareNot sold
Brawling gloves (Ranged)Brawling gloves (Ranged)1Very rareNot sold
Brawling gloves (Agility)Brawling gloves (Agility)1Very rareNot sold
Brawling gloves (Cooking)Brawling gloves (Cooking)1Very rareNot sold
Brawling gloves (FM)Brawling gloves (FM)1Very rareNot sold
Brawling gloves (Fishing)Brawling gloves (Fishing)1Very rareNot sold
Brawling gloves (Hunter)Brawling gloves (Hunter)1Very rareNot sold
Brawling gloves (Mining)Brawling gloves (Mining)1Very rareNot sold
Brawling gloves (Prayer)Brawling gloves (Prayer)1Very rareNot sold
Brawling gloves (Smithing)Brawling gloves (Smithing)1Very rareNot sold
Brawling gloves (Thieving)Brawling gloves (Thieving)1Very rareNot sold
Brawling gloves (WC)Brawling gloves (WC)1Very rareNot sold
Crystal triskelion fragment 1Crystal triskelion fragment 11Very rareNot sold
Crystal triskelion fragment 2Crystal triskelion fragment 21Very rareNot sold
Crystal triskelion fragment 3Crystal triskelion fragment 31Very rareNot sold

Universal dropsEdit

Universal drops are dropped by nearly every monster outside of Daemonheim.
These drops are dropped alongside main drops.
Item Quantity Rarity GE price
Key tokenKey token1RareNot sold
Mimic kill tokenMimic kill token1Very rare17,947

TriviaEdit

  • Before the Evolution of Combat when the special attack of the brine sabre and brackish blade was used on a 'Rum'-pumped crab the message "The Brine Sabre/Brackish Blade seems super-effective." appeared. This may have been a reference to Pokémon where a player would see "It's super effective!" when a Pokémon was hit by an attack that it was weak to.
  • Killing a 'rum'-pumped crab is required to complete the Alcrabholic task in the Daemonheim task set.
  • Despite requiring a Slayer level,'Rum'-pumped crabs are not a slayer assignment.
  • Despite being a crab, they used to drop bones. This was rectified on 1 July 2014.