diff --git a/Consul/GoDuration.cs b/Consul/GoDuration.cs
index 9909e39cd80c..17cfe028fae2 100644
--- a/Consul/GoDuration.cs
+++ b/Consul/GoDuration.cs
@@ -28,12 +28,12 @@ namespace Consul
     /// </summary>
     public class Duration
     {
-        public const ulong Nanosecond = Microsecond/1000;
-        public const ulong Microsecond = Millisecond/1000;
-        public const ulong Millisecond = 1;
-        public const ulong Second = 1000*Millisecond;
-        public const ulong Minute = 60*Second;
-        public const ulong Hour = 60*Minute;
+        public const double Nanosecond = Microsecond / 1000;
+        public const double Microsecond = Millisecond / 1000;
+        public const double Millisecond = 1;
+        public const double Second = 1000 * Millisecond;
+        public const double Minute = 60 * Second;
+        public const double Hour = 60 * Minute;
 
         public static Dictionary<string, double> UnitMap = new Dictionary<string, double>()
         {
@@ -49,6 +49,10 @@ public class Duration
 
         public static string ToDuration(TimeSpan ts)
         {
+            if (ts == TimeSpan.Zero)
+            {
+                return "0";
+            }
             var outDuration = new StringBuilder();
             if (ts.TotalSeconds < 1)
             {
@@ -56,15 +60,15 @@ public static string ToDuration(TimeSpan ts)
             }
             else
             {
-                if ((int) ts.TotalHours > 0)
+                if ((int)ts.TotalHours > 0)
                 {
                     outDuration.Append(ts.TotalHours.ToString("#h"));
                 }
-                if ((int) ts.TotalMinutes > 0)
+                if ((int)ts.TotalMinutes > 0)
                 {
                     outDuration.Append(ts.Minutes.ToString("#m"));
                 }
-                if ((int) ts.TotalSeconds > 0)
+                if ((int)ts.TotalSeconds > 0)
                 {
                     outDuration.Append(ts.Seconds.ToString("#"));
                 }
@@ -94,7 +98,7 @@ public static TimeSpan Parse(string value)
             ulong result;
             if (ulong.TryParse(value, out result))
             {
-                return TimeSpan.FromTicks((long) (result/100));
+                return TimeSpan.FromTicks((long)(result / 100));
             }
 
             var matches = Regex.Matches(value, pattern);
@@ -111,7 +115,7 @@ public static TimeSpan Parse(string value)
                 {
                     if (UnitMap.ContainsKey(match.Groups[2].Value))
                     {
-                        time += res*UnitMap[match.Groups[2].Value];
+                        time += res * UnitMap[match.Groups[2].Value];
                     }
                     else
                     {
diff --git a/Consul/JsonConverters.cs b/Consul/JsonConverters.cs
index a4772ea367d3..6f6339b60560 100644
--- a/Consul/JsonConverters.cs
+++ b/Consul/JsonConverters.cs
@@ -25,18 +25,18 @@ public class NanoSecTimespanConverter : JsonConverter
     {
         public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
         {
-            serializer.Serialize(writer, ((TimeSpan) value).TotalMilliseconds*1000, typeof (long));
+            serializer.Serialize(writer, (long)((TimeSpan)value).TotalMilliseconds * 1000000, typeof(long));
         }
 
         public override object ReadJson(JsonReader reader, Type objectType, object existingValue,
             JsonSerializer serializer)
         {
-            return Duration.Parse((string) serializer.Deserialize(reader, typeof (string)));
+            return Duration.Parse((string)serializer.Deserialize(reader, typeof(string)));
         }
 
         public override bool CanConvert(Type objectType)
         {
-            if (objectType == typeof (TimeSpan))
+            if (objectType == typeof(TimeSpan))
             {
                 return true;
             }
@@ -48,18 +48,18 @@ public class DurationTimespanConverter : JsonConverter
     {
         public override void WriteJson(JsonWriter writer, object value, JsonSerializer serializer)
         {
-            serializer.Serialize(writer, Duration.ToDuration((TimeSpan) value));
+            serializer.Serialize(writer, Duration.ToDuration((TimeSpan)value));
         }
 
         public override object ReadJson(JsonReader reader, Type objectType, object existingValue,
             JsonSerializer serializer)
         {
-            return Duration.Parse((string) serializer.Deserialize(reader, typeof (string)));
+            return Duration.Parse((string)serializer.Deserialize(reader, typeof(string)));
         }
 
         public override bool CanConvert(Type objectType)
         {
-            if (objectType == typeof (TimeSpan))
+            if (objectType == typeof(TimeSpan))
             {
                 return true;
             }
diff --git a/Consul/KV.cs b/Consul/KV.cs
index 2440d0a89239..076fa304bf55 100644
--- a/Consul/KV.cs
+++ b/Consul/KV.cs
@@ -262,7 +262,7 @@ public WriteResult<bool> Acquire(KVPair p)
         /// <returns>A write result indicating if the acquisition attempt succeeded</returns>
         public WriteResult<bool> Acquire(KVPair p, WriteOptions q)
         {
-            var req = _client.CreateWriteRequest<object, bool>(string.Format("/v1/kv/{0}", p.Key), q);
+            var req = _client.CreateWriteRequest<byte[], bool>(string.Format("/v1/kv/{0}", p.Key), p.Value, q);
             if (p.Flags > 0)
             {
                 req.Params["flags"] = p.Flags.ToString();