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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)1Common3,703
Super defence (1)Super defence (1)1Uncommon1,766
Super ranging potion (2)Super ranging potion (2)1Rare11,682
Grimy guamGrimy guam1Common582
Grimy marrentillGrimy marrentill1Common1,958
Grimy tarrominGrimy tarromin1Common105
Grimy harralanderGrimy harralander1Common471
Grimy ranarrGrimy ranarr1Common1,724
Grimy iritGrimy irit1Common4,011
Grimy kwuarmGrimy kwuarm1Uncommon7,994
Grimy avantoeGrimy avantoe1Uncommon894
Grimy cadantineGrimy cadantine1Uncommon2,806
Grimy lantadymeGrimy lantadyme1Uncommon6,719
Grimy dwarf weedGrimy dwarf weed1Uncommon6,276
Potato seed 5Potato seed1–3Common241–723
Onion seed 5Onion seed1–3Common252–756
Cabbage seed 5Cabbage seed1–3Common250–750
Tomato seed 5Tomato seed1–3Common100–300
Strawberry seed 5Strawberry seed1–3Common1,111–3,333
Watermelon seed 5Watermelon seed1–3Uncommon3,465–10,395
Evil turnip seed 5Evil turnip seed1–4Uncommon196–784
Sweetcorn seed 5Sweetcorn seed1–3Uncommon188–564
Morchella mushroom spore 5Morchella mushroom spore2Uncommon340
Fellstalk seed 5Fellstalk seed1Rare691
Coins 1000Coins342–1,671Common342–1,671
LobsterLobster1Common136
Raw lobsterRaw lobster(noted)Common1,233
Gold oreGold ore(noted)Common782
Fire talismanFire talisman1Rare338
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 sapphire1Common615
Uncut emeraldUncut emerald1Common1,019
Uncut rubyUncut ruby1Common1,224
Uncut diamondUncut diamond1Common2,849
Uncut diamondUncut diamond45–55 (noted)Rare128,205–156,695
Loop half of a keyLoop half of a key1Common8,888
Tooth half of a keyTooth half of a key1Common10,378
Uncut dragonstoneUncut dragonstone1Uncommon12,083
Uncut dragonstoneUncut dragonstone45–55 (noted)Rare543,735–664,565
Dragon longswordDragon longsword1Common56,966
Dragon spearDragon spear1Rare33,695
BattlestaffBattlestaff180–220 (noted)Rare503,100–614,900
Rune javelinRune javelin5Rare900
Rune platebodyRune platebody1Uncommon37,480
Rune platebodyRune platebody15–25 (noted)Rare562,200–937,000
Shield left halfShield left half1Rare62,942
Dragon helmDragon helm1Uncommon57,542
Rune arrowheads 5Rune arrowheads113–137Common12,543–15,207
Onyx bolts 5Onyx bolts135–165Very rare1,004,535–1,227,765
Chaos talismanChaos talisman1Rare1,254
Nature talismanNature talisman1Rare1,853
Water talismanWater talisman65–82 (noted)Rare137,735–173,758
Earth talismanEarth talisman65–82 (noted)Rare8,970–11,316
Fire talismanFire talisman25–35 (noted)Rare8,450–11,830
Raw lobsterRaw lobster135–165 (noted)Common55,485–67,815
Raw sharkRaw shark225–275 (noted)Uncommon325,575–397,925
Big bonesBig bones68–82 (noted)Uncommon21,080–25,420
Dragon bonesDragon bones180–220 (noted)Rare466,740–570,460
CoalCoal200–1,100 (noted)Uncommon20,000–110,000
Gold oreGold ore90–110 (noted)Common35,190–43,010
Adamantite oreAdamantite ore180–220 (noted)Uncommon42,480–51,920
Adamant barAdamant bar14–16 (noted)Common15,862–18,128
Adamant barAdamant bar135–165 (noted)Rare152,955–186,945
Runite oreRunite ore90–110 (noted)Rare79,470–97,130
Rune barRune bar(noted)Common5,535
Rune barRune bar45–55 (noted)Rare83,025–101,475
Grimy torstolGrimy torstol90–110 (noted)Uncommon506,070–618,530
Grimy snapdragonGrimy snapdragon90–110 (noted)Uncommon121,770–148,830
Super restore (4)Super restore (4)45–55 (noted)Uncommon108,045–132,055
Prayer potion (4)Prayer potion (4)45–55 (noted)Uncommon125,190–153,010
Lantadyme seed 5Lantadyme seed14–16Uncommon19,558–22,352
Dwarf weed seed 5Dwarf weed seed14–16Uncommon10,640–12,160
Magic seed 5Magic seed4Uncommon222,376
Palm tree seed 5Palm tree seed10Rare602,090
FlaxFlax450–550 (noted)Common48,150–58,850
Molten glassMolten glass45–55 (noted)Common16,155–19,745
Soft claySoft clay450–550 (noted)Uncommon182,700–223,300
Yew logsYew logs68–82 (noted)Uncommon11,900–14,350
Yew logsYew logs675–825 (noted)Rare118,125–144,375
Teak plankTeak plank45–55 (noted)Uncommon13,365–16,335
Mahogany plankMahogany plank270–330 (noted)Rare227,340–277,860
Blurberry SpecialBlurberry Special1Uncommon13,399
Vecna skullVecna skull1Very rare*104,168
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 rare7,385

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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