diff --git a/src/simulation/elements/PIPE.cpp b/src/simulation/elements/PIPE.cpp
index 95f7c0834..ec957670a 100644
--- a/src/simulation/elements/PIPE.cpp
+++ b/src/simulation/elements/PIPE.cpp
@@ -457,6 +457,13 @@ void Element_PIPE_transfer_pipe_to_part(Simulation * sim, Particle *pipe, Partic
 	else
 	{
 		pipe->ctype = 0;
+
+		// If deco originated from particle, and not PIPE, then copy it
+		if (pipe->tmp & PFLAG_PARTICLE_DECO)
+		{
+			part->dcolour = pipe->dcolour;
+			pipe->dcolour = 0;
+		}
 	}
 }
 
@@ -472,6 +479,12 @@ static void transfer_part_to_pipe(Particle *part, Particle *pipe)
 	pipe->tmp2 = part->life;
 	pipe->tmp3 = part->tmp;
 	pipe->tmp4 = part->ctype;
+
+	if (part->dcolour && !pipe->dcolour)
+	{
+		pipe->dcolour = part->dcolour;
+		pipe->tmp |= PFLAG_PARTICLE_DECO;
+	}
 }
 
 static void transfer_pipe_to_pipe(Particle *src, Particle *dest, bool STOR)
@@ -486,6 +499,18 @@ static void transfer_pipe_to_pipe(Particle *src, Particle *dest, bool STOR)
 	{
 		dest->ctype = src->ctype;
 		src->ctype = 0;
+
+		if (src->tmp & PFLAG_PARTICLE_DECO)
+		{
+			// Even if source pipe has particle deco, don't override existing pipe deco. Just delete source deco only.
+			if (!dest->dcolour)
+			{
+				dest->dcolour = src->dcolour;
+				dest->tmp |= PFLAG_PARTICLE_DECO;
+			}
+			src->dcolour = 0;
+			src->tmp &= ~PFLAG_PARTICLE_DECO;
+		}
 	}
 
 	if ((dest->tmp & PFLAG_CAN_CONDUCT) == 0)
diff --git a/src/simulation/elements/PIPE.h b/src/simulation/elements/PIPE.h
index f7055a204..25cba410c 100644
--- a/src/simulation/elements/PIPE.h
+++ b/src/simulation/elements/PIPE.h
@@ -15,6 +15,7 @@ void Element_PPIP_flood_trigger(Simulation * sim, int x, int y, int sparkedBy);
 // 0x000E0000 PIPE color data stored here
 
 constexpr int PFLAG_CAN_CONDUCT            = 0x00000001;
+constexpr int PFLAG_PARTICLE_DECO          = 0x00000002; // differentiate particle deco from pipe deco
 constexpr int PFLAG_NORMALSPEED            = 0x00010000;
 constexpr int PFLAG_INITIALIZING           = 0x00020000; // colors haven't been set yet
 constexpr int PFLAG_COLOR_RED              = 0x00040000;