diff --git a/src/reader.py b/src/reader.py
index 48b6155..31aaf6f 100644
--- a/src/reader.py
+++ b/src/reader.py
@@ -6,6 +6,7 @@ import sys
 import select
 import random
 import log
+import bucket
 
 __interval__ = .1
 
@@ -68,36 +69,19 @@ class StdinReader:
       return None
 
 class RandomReader:
-   def __init__(self, keys={"a":{"weight":1}, "b":{"weight":1}}):
+   def __init__(self, keys):
       self.keys = keys
-      self.pool = RandomPool(keys)
+      self.pool = bucket.Bucket(1)
+      self.pool.chooser = bucket.BucketChooserProportionalRandom()
+      for k,v in keys.items():
+         for i in range(v["weight"]):
+            self.pool.push(k)
 
    def read(self):
-      return self.pool.pop()
-
-class RandomPool:
-   def __init__(self, values):
-      self.values = {
-         k:int(1000*v["weight"]) for k,v in values.items()
-      }
-      self.total = sum(self.values.values())
-      self.consumed = set()
-      log.info("RandomPool with", {k:int(100.0*v/self.total) for k,v in self.values.items()})
-
-   def reset(self):
-      self.consumed = set()
-
-   def pop(self):
-      idx = random.randint(0, self.total-1)
-      idx_offset = 0
-      for k in sorted(self.values.keys()):
-         if self.values[k] > idx+idx_offset:
-            return k
-         idx_offset -= self.values[k]
-      raise Exception(":(")
-
-   def should_reset(self):
-      return len(self.consumed) >= len(self.values)/2
+      result = self.pool.pick_n(1)
+      if not result:
+         return None
+      return result[0]
 
 class FileReader:
    def __init__(self, path):