Adding monitor disassociation operation to pools
diff --git a/openstack/networking/v2/extensions/lbaas/pools/requests.go b/openstack/networking/v2/extensions/lbaas/pools/requests.go
index caedb39..9ce2672 100644
--- a/openstack/networking/v2/extensions/lbaas/pools/requests.go
+++ b/openstack/networking/v2/extensions/lbaas/pools/requests.go
@@ -232,3 +232,13 @@
 	res.Err = err
 	return res
 }
+
+func DisassociateMonitor(c *gophercloud.ServiceClient, poolID, monitorID string) AssociateResult {
+	var res AssociateResult
+	_, err := perigee.Request("DELETE", disassociateURL(c, poolID, monitorID), perigee.Options{
+		MoreHeaders: c.Provider.AuthenticatedHeaders(),
+		OkCodes:     []int{204},
+	})
+	res.Err = err
+	return res
+}
diff --git a/openstack/networking/v2/extensions/lbaas/pools/requests_test.go b/openstack/networking/v2/extensions/lbaas/pools/requests_test.go
index 31e2837..3523617 100644
--- a/openstack/networking/v2/extensions/lbaas/pools/requests_test.go
+++ b/openstack/networking/v2/extensions/lbaas/pools/requests_test.go
@@ -312,5 +312,15 @@
 }
 
 func TestDisassociateHealthMonitor(t *testing.T) {
+	th.SetupHTTP()
+	defer th.TeardownHTTP()
 
+	th.Mux.HandleFunc("/v2.0/lb/pools/332abe93-f488-41ba-870b-2ac66be7f853/health_monitors/b624decf-d5d3-4c66-9a3d-f047e7786181", func(w http.ResponseWriter, r *http.Request) {
+		th.TestMethod(t, r, "DELETE")
+		th.TestHeader(t, r, "X-Auth-Token", tokenID)
+		w.WriteHeader(http.StatusNoContent)
+	})
+
+	res := DisassociateMonitor(serviceClient(), "332abe93-f488-41ba-870b-2ac66be7f853", "b624decf-d5d3-4c66-9a3d-f047e7786181")
+	th.AssertNoErr(t, res.Err)
 }
diff --git a/openstack/networking/v2/extensions/lbaas/pools/urls.go b/openstack/networking/v2/extensions/lbaas/pools/urls.go
index 0846782..124ef5d 100644
--- a/openstack/networking/v2/extensions/lbaas/pools/urls.go
+++ b/openstack/networking/v2/extensions/lbaas/pools/urls.go
@@ -20,3 +20,7 @@
 func associateURL(c *gophercloud.ServiceClient, id string) string {
 	return c.ServiceURL(version, rootPath, resourcePath, id, monitorPath)
 }
+
+func disassociateURL(c *gophercloud.ServiceClient, poolID, monitorID string) string {
+	return c.ServiceURL(version, rootPath, resourcePath, poolID, monitorPath, monitorID)
+}