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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 blade1Rare63,881
Fishing potion (4)Fishing potion (4)(noted)Common1,702
Super attack (1)Super attack (1)1Common1,414
Super strength (1)Super strength (1)1Common3,857
Super defence (1)Super defence (1)1Uncommon1,846
Super ranging potion (2)Super ranging potion (2)1Rare12,220
Grimy guamGrimy guam1Common545
Grimy marrentillGrimy marrentill1Common2,171
Grimy tarrominGrimy tarromin1Common107
Grimy harralanderGrimy harralander1Common442
Grimy ranarrGrimy ranarr1Common1,606
Grimy iritGrimy irit1Common4,004
Grimy kwuarmGrimy kwuarm1Uncommon7,894
Grimy avantoeGrimy avantoe1Uncommon859
Grimy cadantineGrimy cadantine1Uncommon2,856
Grimy lantadymeGrimy lantadyme1Uncommon6,695
Grimy dwarf weedGrimy dwarf weed1Uncommon6,023
Potato seed 5Potato seed1–3Common253–759
Onion seed 5Onion seed1–3Common260–780
Cabbage seed 5Cabbage seed1–3Common243–729
Tomato seed 5Tomato seed1–3Common97–291
Strawberry seed 5Strawberry seed1–3Common1,050–3,150
Watermelon seed 5Watermelon seed1–3Uncommon3,307–9,921
Evil turnip seed 5Evil turnip seed1–4Uncommon196–784
Sweetcorn seed 5Sweetcorn seed1–3Uncommon181–543
Morchella mushroom spore 5Morchella mushroom spore2Uncommon346
Fellstalk seed 5Fellstalk seed1Rare759
Coins 1000Coins342–1,671Common342–1,671
LobsterLobster1Common128
Raw lobsterRaw lobster(noted)Common1,359
Gold oreGold ore(noted)Common716
Fire talismanFire talisman1Rare325
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 sapphire1Common639
Uncut emeraldUncut emerald1Common948
Uncut rubyUncut ruby1Common1,160
Uncut diamondUncut diamond1Common2,851
Uncut diamondUncut diamond45–55 (noted)Rare128,295–156,805
Loop half of a keyLoop half of a key1Common9,028
Tooth half of a keyTooth half of a key1Common10,746
Uncut dragonstoneUncut dragonstone1Uncommon11,798
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare530,910–648,890
Dragon longswordDragon longsword1Common56,887
Dragon spearDragon spear1Rare33,674
BattlestaffBattlestaff180–220 (noted)Rare501,300–612,700
Rune javelinRune javelin5Rare910
Rune platebodyRune platebody1Uncommon37,480
Rune platebodyRune platebody15–25 (noted)Rare562,200–937,000
Shield left halfShield left half1Rare62,204
Dragon helmDragon helm1Uncommon57,708
Rune arrowheads 5Rune arrowheads113–137Common11,639–14,111
Onyx bolts 5Onyx bolts135–165Very rare1,001,430–1,223,970
Chaos talismanChaos talisman1Rare1,217
Nature talismanNature talisman1Rare1,853
Water talismanWater talisman65–82 (noted)Rare150,670–190,076
Earth talismanEarth talisman65–82 (noted)Rare9,880–12,464
Fire talismanFire talisman25–35 (noted)Rare8,125–11,375
Raw lobsterRaw lobster135–165 (noted)Common61,155–74,745
Raw sharkRaw shark225–275 (noted)Uncommon353,025–431,475
Big bonesBig bones68–82 (noted)Uncommon22,372–26,978
Dragon bonesDragon bones180–220 (noted)Rare453,240–553,960
CoalCoal200–1,100 (noted)Uncommon20,000–110,000
Gold oreGold ore90–110 (noted)Common32,220–39,380
Adamantite oreAdamantite ore180–220 (noted)Uncommon43,560–53,240
Adamant barAdamant bar14–16 (noted)Common16,016–18,304
Adamant barAdamant bar135–165 (noted)Rare154,440–188,760
Runite oreRunite ore90–110 (noted)Rare85,680–104,720
Rune barRune bar(noted)Common5,175
Rune barRune bar45–55 (noted)Rare77,625–94,875
Grimy torstolGrimy torstol90–110 (noted)Uncommon496,080–606,320
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon121,950–149,050
Super restore (4)Super restore (4)45–55 (noted)Uncommon114,165–139,535
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon135,810–165,990
Lantadyme seed 5Lantadyme seed14–16Uncommon21,672–24,768
Dwarf weed seed 5Dwarf weed seed14–16Uncommon11,774–13,456
Magic seed 5Magic seed4Uncommon227,040
Palm tree seed 5Palm tree seed10Rare667,140
FlaxFlax450–550 (noted)Common49,950–61,050
Molten glassMolten glass45–55 (noted)Common15,255–18,645
Soft claySoft clay450–550 (noted)Uncommon195,300–238,700
Yew logsYew logs68–82 (noted)Uncommon13,056–15,744
Yew logsYew logs675–825 (noted)Rare129,600–158,400
Teak plankTeak plank45–55 (noted)Uncommon13,590–16,610
Mahogany plankMahogany plank270–330 (noted)Rare229,500–280,500
Blurberry SpecialBlurberry Special1Uncommon13,399
Vecna skullVecna skull1Very rare*108,381
Hazelmere's signet ringHazelmere's signet ring1Very rare*1,747,789,117
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 rare7,870

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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