diff --git a/framework/Distributions.py b/framework/Distributions.py
index 7729fe3910..a2732395af 100644
--- a/framework/Distributions.py
+++ b/framework/Distributions.py
@@ -387,9 +387,9 @@ def cdf(self,x):
       @ Out, retunrCdf, float, requested cdf
     """
     if hasattr(x,'__len__'):
-      returnCdf = np.array([self.cdf(i) for i in x])
+      returnCdf = np.array([self.cdf(utils.floatConversion(i)) for i in x])
     else:
-      returnCdf = self._distribution.cdf(x)
+      returnCdf = self._distribution.cdf(utils.floatConversion(x))
     return returnCdf
 
   def ppf(self,x):
@@ -400,9 +400,9 @@ def ppf(self,x):
     """
     # TODO speed this up by doing it in Crow, not in python
     if hasattr(x,'__len__'):
-      returnPpf = np.array([self.ppf(i) for i in x])
+      returnPpf = np.array([self.ppf(utils.floatConversion(i)) for i in x])
     else:
-      returnPpf = self._distribution.inverseCdf(x)
+      returnPpf = self._distribution.inverseCdf(utils.floatConversion(x))
     return returnPpf
 
   def pdf(self,x):
@@ -411,7 +411,7 @@ def pdf(self,x):
       @ In, x, float, value to get the pdf at
       @ Out, returnPdf, float, requested pdf
     """
-    returnPdf = self._distribution.pdf(x)
+    returnPdf = self._distribution.pdf(utils.floatConversion(x))
     return returnPdf
 
   def untruncatedCdfComplement(self, x):
@@ -420,7 +420,7 @@ def untruncatedCdfComplement(self, x):
       @ In, x, float, value to get the untruncated  cdf complement  at
       @ Out, float, requested untruncated  cdf complement
     """
-    return self._distribution.untrCdfComplement(x)
+    return self._distribution.untrCdfComplement(utils.floatConversion(x))
 
   def untruncatedHazard(self, x):
     """
@@ -428,7 +428,7 @@ def untruncatedHazard(self, x):
       @ In, x, float, value to get the untruncated  Hazard   at
       @ Out, float, requested untruncated  Hazard
     """
-    return self._distribution.untrHazard(x)
+    return self._distribution.untrHazard(utils.floatConversion(x))
 
   def untruncatedMean(self):
     """
diff --git a/tests/framework/gold/GridTest/outGrid_dump.csv b/tests/framework/gold/GridTest/outGrid_dump.csv
index 48843056c6..e9208b714d 100644
--- a/tests/framework/gold/GridTest/outGrid_dump.csv
+++ b/tests/framework/gold/GridTest/outGrid_dump.csv
@@ -1,19 +1,19 @@
 VarGauss2,VarGauss1,VarTri1
-0.0,0.02,3.5
-0.0,0.02,4.0
-1.0,0.02,3.5
-1.0,0.02,4.0
-2.0,0.02,3.5
-2.0,0.02,4.0
-0.0,0.5,3.5
-0.0,0.5,4.0
-1.0,0.5,3.5
-1.0,0.5,4.0
-2.0,0.5,3.5
-2.0,0.5,4.0
-0.0,0.6,3.5
-0.0,0.6,4.0
-1.0,0.6,3.5
-1.0,0.6,4.0
-2.0,0.6,3.5
-2.0,0.6,4.0
+0.0,0,3.5
+0.0,0,4.0
+1.0,0,3.5
+1.0,0,4.0
+2.0,0,3.5
+2.0,0,4.0
+0.0,1,3.5
+0.0,1,4.0
+1.0,1,3.5
+1.0,1,4.0
+2.0,1,3.5
+2.0,1,4.0
+0.0,2,3.5
+0.0,2,4.0
+1.0,2,3.5
+1.0,2,4.0
+2.0,2,3.5
+2.0,2,4.0
diff --git a/tests/framework/test_Grid_Sampler.xml b/tests/framework/test_Grid_Sampler.xml
index 48b021c0a6..a34dd74b00 100644
--- a/tests/framework/test_Grid_Sampler.xml
+++ b/tests/framework/test_Grid_Sampler.xml
@@ -19,6 +19,7 @@
       <revision author="maljdan" date="2016-04-06">Updating test cases to reflect the changes to the user input.</revision>
       <revision author="talbpaul" date="2016-04-26">added check for pre-existing backup files when validating</revision>
       <revision author="alfoa" date="2017-01-21">Adding this test description.</revision>
+      <revision author="alfoa" date="2019-06-05">Modified grid to test resolution of issue #1003</revision>
     </revisions>
     <requirements>R-RE-3</requirements>
   </TestInfo>
@@ -54,10 +55,10 @@
 
   <Samplers>
     <Grid name="myGrid">
-      <variable name="VarGauss1">
-        <distribution>Gauss1</distribution>
-        <grid construction="custom" type="value">0.02 0.5 0.6</grid>
-      </variable>
+        <variable name="VarGauss1">
+            <distribution>Gauss1</distribution>
+            <grid construction="custom" type="value">0 1 2</grid>
+        </variable>
       <variable name="VarGauss2">
         <distribution>Gauss2</distribution>
         <grid construction="custom" type="CDF">0.5 1.0 0.0</grid>