Spent awhile now searching the forums trying to solve my water pressure problem. It works fine on the 12 volt pump but not under mains pressure so after cleaning this cleaning that but to no avail until today. Never thought of checking hose, yep the hose has a one-way valve in it and restricts The water to much, Replaced and bingo happy wife.even had them check it out when it had its service but of course with there hose would have been fine.