CT Softwash LLC - Power Washing & Roof CleaningAddress: 919 Colonel Ledyard Hwy, Ledyard, CT 06339Phone: (860) 993-9770PSI and GPM: Tend not to miss the this means of PSI (lbs for each sq. inch) and GPM (gallon per minute) values additional towards the force washer and how they have an effect on the cleansing process. An especially superior PSI and