[supa]

hi all , i'm new to the art of windw cleaning & bin at it about 2 mnths now on wfp & getting there slowly but surely but & i'm a bit stuck on an issue regarding increasing my water pressure through to my merlin ro 720 GPD ( van mounted ) , at the min i'm getting about 36-38 psi & filling my 350l tank in about 5-6 hrs fom empty ! is there any way of increasing my psi through to my merlin to get a quicker fill rate & increasing my psi with a external pump of any sought from my external garden tap, any links or info will be gratefully accepted thanks