diff --git a/lua/autorun/gwater2_init.lua b/lua/autorun/gwater2_init.lua
index bdb079c..81f904f 100644
--- a/lua/autorun/gwater2_init.lua
+++ b/lua/autorun/gwater2_init.lua
@@ -188,4 +188,12 @@ timer.Create("gwater2_tick", limit_fps, 0, function()
 end)
 
 hook.Add("InitPostEntity", "gwater2_addprop", gwater2.reset_solver)
-hook.Add("OnEntityCreated", "gwater2_addprop", function(ent) timer.Simple(0, function() add_prop(ent) end) end)	// timer.0 so data values are setup correctly
\ No newline at end of file
+hook.Add("OnEntityCreated", "gwater2_addprop", function(ent) timer.Simple(0, function() add_prop(ent) end) end)	// timer.0 so data values are setup correctly
+
+hook.Add("gwater2_pretick", "gravgun", function()
+	local lp = LocalPlayer()
+	if !lp:KeyDown(IN_ATTACK2) then return end
+	if IsValid(LocalPlayer():GetActiveWeapon()) and LocalPlayer():GetActiveWeapon():GetClass() == "weapon_physcannon" then
+		gwater2.solver:AddForceField(LocalPlayer():EyePos() + LocalPlayer():GetAimVector() * 170, 150, -60, 0, true)
+	end
+end)
\ No newline at end of file
diff --git a/lua/entities/gwater2_blackhole.lua b/lua/entities/gwater2_blackhole.lua
index 4efab9d..a17ba0f 100644
--- a/lua/entities/gwater2_blackhole.lua
+++ b/lua/entities/gwater2_blackhole.lua
@@ -32,7 +32,7 @@ function ENT:SetupDataTables()
 
 	self.PARTICLE_EMITTER = ParticleEmitter(self:GetPos(), false)
 	hook.Add("gwater2_pretick", self, function()
-		gwater2.solver:AddForceField(self:GetPos(), self:GetRadius(), self:GetStrength(), self:GetMode(), self:GetLinear())
+		gwater2.solver:AddForceField(self:GetPos(), self:GetRadius(), -self:GetStrength(), self:GetMode(), self:GetLinear())
 	end)
 end
 
@@ -45,7 +45,7 @@ if SERVER then
 		ent:Activate()
 
 		ent:SetRadius(1000)
-		ent:SetStrength(-50)
+		ent:SetStrength(50)
 		ent:SetMode(0)
 		ent:SetLinear(1)
 
@@ -59,7 +59,7 @@ elseif CLIENT then
 		local part = self.PARTICLE_EMITTER:Add("particle/warp_ripple", self:GetPos())
 		part:SetVelocity(Vector())
 		part:SetGravity(Vector())
-		part:SetDieTime(0.1)
+		part:SetDieTime(FrameTime() * 10)
 		//part:SetColor(Color(255, 255, 255, 0))
 		part:SetStartSize(50)
 		part:SetEndSize(50)
@@ -69,10 +69,10 @@ elseif CLIENT then
 		local part = self.PARTICLE_EMITTER:Add("particle/warp1_warp", self:GetPos())
 		part:SetVelocity(Vector())
 		part:SetGravity(Vector())
-		part:SetDieTime(0.2)
+		part:SetDieTime(FrameTime() * 20)
 		part:SetColor(Color(255, 255, 255))
 		part:SetStartSize(25 + (math.sin(CurTime() * 2) * 3))
-		part:SetEndSize(0)
+		part:SetEndSize(22)
 		//part:SetStartAlpha(255)
 		part:SetLighting(false)
 		self:SetNextClientThink(CurTime() + 0.001)
diff --git a/lua/gwater2_shaders.lua b/lua/gwater2_shaders.lua
index f6378c1..dfe8610 100644
--- a/lua/gwater2_shaders.lua
+++ b/lua/gwater2_shaders.lua
@@ -107,7 +107,7 @@ hook.Add("PostDrawOpaqueRenderables", "gwater2_render", function(depth, sky, sky
 	else
 		-- no absorption calculations, so just use solid color
 		render.PushRenderTarget(cache_absorption)
-		render.Clear(10, 10, 10, 10)
+		render.Clear(15, 15, 15, 10)
 		render.PopRenderTarget()
 	end
 
diff --git a/lua/gwater2_swimming.lua b/lua/gwater2_swimming.lua
index 217a898..a377043 100644
--- a/lua/gwater2_swimming.lua
+++ b/lua/gwater2_swimming.lua
@@ -1,5 +1,5 @@
 
-local GWATER2_PARTICLES_TO_SWIM = 30
+local GWATER2_PARTICLES_TO_SWIM = 50
 
 -- swim code provided by kodya (with permission)
 local gravity_convar = GetConVar("sv_gravity")
diff --git a/materials/gwater2/finalpass.vmt b/materials/gwater2/finalpass.vmt
index ff26e41..2bf59a2 100644
--- a/materials/gwater2/finalpass.vmt
+++ b/materials/gwater2/finalpass.vmt
@@ -2,7 +2,7 @@ GWaterFinalpass {
 	$envmap "env_cubemap"
 	$radius 10
 	$ior 1.333
-	$reflectance 0.6
+	$reflectance 0.65
 	$screentexture "_rt_fullframefb"
 	$color2 "[209 237 255 25]"
 	$flashlight 1