Simulating a phospholipid in amber99sb force field

GROMACS version:2020.1-Ubuntu-2020.1-1
GROMACS modification: Yes/No

Hello all,
i want to simulate the phospholipid molecule using amber99sb force field. I generated the top itp and gro file from the acpype and now i want to simulate the lipid. the problem is I don’t know how to add the water model Tip3p to the system. can anyone help what are the next steps to be followed to simulate the structure.

You can include the water molecule in your topology file after the description of the lipid. If you use standard amber99bs (distributed with GROMACS), you can use the following line.
#include “amber99sb.ff/tip3p.itp”
You can add water molecules in your structural file by using the tool gmx solvate