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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.

Drops

Charms

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 drop

Item Quantity Rarity GE price
Rune clawRune claw1Uncommon4,555
Off-hand rune clawOff-hand rune claw1Uncommon3,835
Brackish bladeBrackish blade1Rare112,035
Fishing potion (4)Fishing potion (4)(noted)Common1,542
Super attack (1)Super attack (1)1Common1,291
Super strength (1)Super strength (1)1Common2,191
Super defence (1)Super defence (1)1Uncommon1,798
Super ranging potion (2)Super ranging potion (2)1Rare6,122
Grimy guamGrimy guam1Common342
Grimy marrentillGrimy marrentill1Common895
Grimy tarrominGrimy tarromin1Common56
Grimy harralanderGrimy harralander1Common98
Grimy ranarrGrimy ranarr1Common1,447
Grimy iritGrimy irit1Common3,743
Grimy kwuarmGrimy kwuarm1Uncommon6,118
Grimy avantoeGrimy avantoe1Uncommon731
Grimy cadantineGrimy cadantine1Uncommon2,311
Grimy lantadymeGrimy lantadyme1Uncommon4,817
Grimy dwarf weedGrimy dwarf weed1Uncommon3,872
Potato seed 5Potato seed1–3Common57–171
Onion seed 5Onion seed1–3Common41–123
Cabbage seed 5Cabbage seed1–3Common45–135
Tomato seed 5Tomato seed1–3Common49–147
Strawberry seed 5Strawberry seed1–3Common302–906
Watermelon seed 5Watermelon seed1–3Uncommon1,592–4,776
Evil turnip seed 5Evil turnip seed1–4Uncommon23–92
Sweetcorn seed 5Sweetcorn seed1–3Uncommon55–165
Morchella mushroom spore 5Morchella mushroom spore2Uncommon112
Fellstalk seed 5Fellstalk seed1Rare270
Coins 1000Coins342–1,671Common342–1,671
LobsterLobster1Common88
Raw lobsterRaw lobster(noted)Common582
Gold oreGold ore(noted)Common492
Fire talismanFire talisman1Rare636
Rare drop tableRare drop table1RareNot sold

Tertiary

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 table

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 sapphire1Common376
Uncut emeraldUncut emerald1Common807
Uncut rubyUncut ruby1Common1,082
Uncut diamondUncut diamond1Common2,259
Uncut diamondUncut diamond45–55 (noted)Rare101,655–124,245
Loop half of a keyLoop half of a key1Common11,050
Tooth half of a keyTooth half of a key1Common13,531
Uncut dragonstoneUncut dragonstone1Uncommon11,533
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare518,985–634,315
Dragon longswordDragon longsword1Common58,138
Dragon spearDragon spear1Rare36,734
BattlestaffBattlestaff180–220 (noted)Rare899,460–1,099,340
Rune javelinRune javelin5Rare905
Rune platebodyRune platebody1Uncommon37,480
Rune platebodyRune platebody15–25 (noted)Rare562,200–937,000
Shield left halfShield left half1Rare65,079
Dragon helmDragon helm1Uncommon59,049
Rune arrowheads 5Rune arrowheads113–137Common15,255–18,495
Onyx bolts 5Onyx bolts135–165Very rare1,085,535–1,326,765
Chaos talismanChaos talisman1Rare1,085
Nature talismanNature talisman1Rare812
Water talismanWater talisman65–82 (noted)Rare349,570–440,996
Earth talismanEarth talisman65–82 (noted)Rare42,900–54,120
Fire talismanFire talisman25–35 (noted)Rare15,900–22,260
Raw lobsterRaw lobster135–165 (noted)Common26,190–32,010
Raw sharkRaw shark225–275 (noted)Uncommon187,650–229,350
Big bonesBig bones68–82 (noted)Uncommon11,560–13,940
Dragon bonesDragon bones180–220 (noted)Rare355,140–434,060
CoalCoal200–1,100 (noted)Uncommon24,600–135,300
Gold oreGold ore90–110 (noted)Common22,140–27,060
Adamantite oreAdamantite ore180–220 (noted)Uncommon51,660–63,140
Adamant barAdamant bar14–16 (noted)Common23,982–27,408
Adamant barAdamant bar135–165 (noted)Rare231,255–282,645
Runite oreRunite ore90–110 (noted)Rare105,210–128,590
Rune barRune bar(noted)Common7,662
Rune barRune bar45–55 (noted)Rare114,930–140,470
Grimy torstolGrimy torstol90–110 (noted)Uncommon376,110–459,690
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon133,290–162,910
Super restore (4)Super restore (4)45–55 (noted)Uncommon155,880–190,520
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon117,675–143,825
Lantadyme seed 5Lantadyme seed14–16Uncommon4,802–5,488
Dwarf weed seed 5Dwarf weed seed14–16Uncommon4,550–5,200
Magic seed 5Magic seed4Uncommon77,952
Palm tree seed 5Palm tree seed10Rare273,180
FlaxFlax450–550 (noted)Common34,200–41,800
Molten glassMolten glass45–55 (noted)Common9,945–12,155
Soft claySoft clay450–550 (noted)Uncommon344,700–421,300
Yew logsYew logs68–82 (noted)Uncommon12,784–15,416
Yew logsYew logs675–825 (noted)Rare126,900–155,100
Teak plankTeak plank45–55 (noted)Uncommon16,920–20,680
Mahogany plankMahogany plank270–330 (noted)Rare225,990–276,210
Blurberry SpecialBlurberry Special1Uncommon8,185
Vecna skullVecna skull1Very rare*211,111
Hazelmere's signet ringHazelmere's signet ring1Very rare*1,848,679,360
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 drops

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 rare9,299

Trivia

  • 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.
  • According to "Admiral" Wadud, 'rum'-pumped crabs are a delicacy for the aristocracy of Menaphos.
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